Annotations can't be stored on MySQL due to small column

org.nuxeo.ecm.core.api.NuxeoException: Could not insert: INSERT INTO `relation` (`id`, `targetstring`, `predicate`, `source`, `targeturi`, `sourceuri`, `target`) VALUES (?, ?, ?, ?, ?, ?, ?)
	at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCRowMapper.insertSimpleRows(JDBCRowMapper.java:555)
	at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCRowMapper.writeCreates(JDBCRowMapper.java:457)
	at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCRowMapper.write(JDBCRowMapper.java:427)
	at org.nuxeo.ecm.core.storage.sql.SoftRefCachingRowMapper.write(SoftRefCachingRowMapper.java:352)
	at org.nuxeo.ecm.core.storage.sql.SessionImpl.doFlush(SessionImpl.java:357)
	at org.nuxeo.ecm.core.storage.sql.SessionImpl.flush(SessionImpl.java:330)
	at org.nuxeo.ecm.core.storage.sql.SessionImpl.save(SessionImpl.java:309)
	at org.nuxeo.ecm.core.storage.sql.ra.ConnectionImpl.save(ConnectionImpl.java:173)
	at org.nuxeo.ecm.core.storage.sql.coremodel.SQLSession.save(SQLSession.java:133)
	at org.nuxeo.ecm.core.api.AbstractSession.save(AbstractSession.java:1359)
	at org.nuxeo.ecm.platform.annotations.repository.service.AnnotatedDocumentEventListenerImpl.notifyEvent(AnnotatedDocumentEventListenerImpl.java:107)
	at org.nuxeo.ecm.platform.annotations.repository.service.AnnotatedDocumentEventListenerImpl.afterAnnotationCreated(AnnotatedDocumentEventListenerImpl.java:63)
	at org.nuxeo.ecm.platform.annotations.repository.core.AnnotationEventListener.afterAnnotationCreated(AnnotationEventListener.java:45)
	at org.nuxeo.ecm.platform.annotations.proxy.AnnotationServiceProxy.addAnnotation(AnnotationServiceProxy.java:90)
	at org.nuxeo.ecm.platform.annotations.service.AnnotationRepositoryTest.testAnnotateDocuments(AnnotationRepositoryTest.java:92)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.nuxeo.runtime.test.runner.FeaturesRunner$15.evaluate(FeaturesRunner.java:472)
	at org.nuxeo.runtime.test.runner.FeaturesRunner$BeforeMethodRunStatement.evaluate(FeaturesRunner.java:351)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.nuxeo.runtime.test.runner.FeaturesRunner$BeforeSetupStatement.evaluate(FeaturesRunner.java:367)
	at org.nuxeo.runtime.test.runner.FeaturesRunner$AfterMethodRunStatement.evaluate(FeaturesRunner.java:398)
	at org.nuxeo.runtime.test.runner.FeaturesRunner$AfterTeardownStatement.evaluate(FeaturesRunner.java:417)
	at org.nuxeo.runtime.test.runner.FeaturesRunner$RulesFactory$1.evaluate(FeaturesRunner.java:530)
	at org.nuxeo.runtime.test.runner.RuntimeDeployment$DeploymentStatement.evaluate(RuntimeDeployment.java:265)
	at org.nuxeo.runtime.test.runner.RuntimeFeature$2$1.evaluate(RuntimeFeature.java:124)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.nuxeo.runtime.test.runner.FeaturesRunner$AfterClassStatement.evaluate(FeaturesRunner.java:290)
	at org.nuxeo.runtime.test.runner.FeaturesRunner$RulesFactory$1.evaluate(FeaturesRunner.java:530)
	at org.nuxeo.runtime.test.runner.FeaturesRunner$BeforeClassStatement.evaluate(FeaturesRunner.java:273)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.sql.BatchUpdateException: Data truncation: Data too long for column 'targetstring' at row 1
	at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:2028)
	at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1451)
	at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCRowMapper.insertSimpleRows(JDBCRowMapper.java:540)
	... 51 more
Caused by: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column 'targetstring' at row 1
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3607)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3541)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2002)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2163)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2624)
	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2127)
	at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2427)
	at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1980)
	... 53 more