Fix repository initialization

org.nuxeo.ecm.core.api.NuxeoException: Row query for test returned several rows: SELECT "ID" FROM "REPOSITORIES" WHERE "NAME" = ?
		at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapper.getRootId(JDBCMapper.java:616)
		at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
		at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
		at java.lang.reflect.Method.invoke(Method.java:498)
		at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapperConnector.doInvoke(JDBCMapperConnector.java:111)
		at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapperConnector.lambda$doConnectAndInvoke$0(JDBCMapperConnector.java:98)
		at org.nuxeo.runtime.transaction.TransactionHelper.runInTransaction(TransactionHelper.java:589)
		at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapperConnector.doConnectAndInvoke(JDBCMapperConnector.java:95)
		at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapperConnector.invoke(JDBCMapperConnector.java:84)
		at com.sun.proxy.$Proxy39.getRootId(Unknown Source)
		at org.nuxeo.ecm.core.storage.sql.SoftRefCachingMapper.getRootId(SoftRefCachingMapper.java:88)
		at org.nuxeo.ecm.core.storage.sql.SessionImpl.computeRootNode(SessionImpl.java:1372)
		at org.nuxeo.ecm.core.storage.sql.SessionImpl.<init>(SessionImpl.java:163)
		at org.nuxeo.ecm.core.storage.sql.RepositoryImpl.newSession(RepositoryImpl.java:347)
		at org.nuxeo.ecm.core.storage.sql.RepositoryImpl.getConnection(RepositoryImpl.java:254)