Fix timeouts while trying to lock VCS tables

Caused by: org.h2.jdbc.JdbcSQLException: Timeout trying to lock table HIERARCHY; SQL statement:
SELECT "_C1", "_C2" FROM (SELECT "HIERARCHY"."ID" AS "_C1", "_F1"."TITLE" AS "_C2" FROM "HIERARCHY" LEFT JOIN "DUBLINCORE" "_F1" ON "HIERARCHY"."ID" = "_F1"."ID" LEFT JOIN "MISC" "_F2" ON "HIERARCHY"."ID" = "_F2"."ID" WHERE (("HIERARCHY"."PRIMARYTYPE" IN (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)) AND ("HIERARCHY"."PRIMARYTYPE" IN (?, ?) OR ("HIERARCHY"."MIXINTYPES" LIKE ?)) AND ("_F2"."LIFECYCLESTATE" <> ?) AND ("_F2"."LIFECYCLESTATE" <> ?) AND ("HIERARCHY"."PARENTID" = ?)) UNION ALL SELECT "_H"."ID" AS "_C1", "_F1"."TITLE" AS "_C2" FROM "HIERARCHY" "_H" JOIN "PROXIES" ON "_H"."ID" = "PROXIES"."ID" JOIN "HIERARCHY" ON "PROXIES"."TARGETID" = "HIERARCHY"."ID" LEFT JOIN "DUBLINCORE" "_F1" ON "HIERARCHY"."ID" = "_F1"."ID" LEFT JOIN "MISC" "_F2" ON "HIERARCHY"."ID" = "_F2"."ID" WHERE (("HIERARCHY"."PRIMARYTYPE" IN (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)) AND ("HIERARCHY"."PRIMARYTYPE" IN (?, ?) OR ("HIERARCHY"."MIXINTYPES" LIKE ?)) AND ("_F2"."LIFECYCLESTATE" <> ?) AND ("_F2"."LIFECYCLESTATE" <> ?) AND ("_H"."PARENTID" = ?))) ORDER BY "_C2" [50200-114]
	at org.h2.message.Message.getSQLException(Message.java:105)
	at org.h2.message.Message.getSQLException(Message.java:116)
	at org.h2.message.Message.getSQLException(Message.java:75)
	at org.h2.table.TableData.doLock(TableData.java:435)
	at org.h2.table.TableData.lock(TableData.java:373)
	at org.h2.table.TableFilter.lock(TableFilter.java:110)
	at org.h2.command.dml.Select.queryWithoutCache(Select.java:549)
	at org.h2.command.dml.Query.query(Query.java:234)
	at org.h2.command.dml.SelectUnion.queryWithoutCache(SelectUnion.java:134)
	at org.h2.command.dml.SelectUnion.query(SelectUnion.java:336)
	at org.h2.index.ViewIndex.find(ViewIndex.java:196)
	at org.h2.table.TableFilter.next(TableFilter.java:296)
	at org.h2.command.dml.Select.queryFlat(Select.java:493)
	at org.h2.command.dml.Select.queryWithoutCache(Select.java:561)
	at org.h2.command.dml.Query.query(Query.java:234)
	at org.h2.command.CommandContainer.query(CommandContainer.java:82)
	at org.h2.command.Command.executeQueryLocal(Command.java:142)
	at org.h2.command.Command.executeQuery(Command.java:123)
	at org.h2.jdbc.JdbcPreparedStatement.executeQuery(JdbcPreparedStatement.java:98)
	at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCMapper.query(JDBCMapper.java:788)
	... 204 more

Caused by: org.h2.jdbc.JdbcBatchUpdateException: Timeout trying to lock table DUBLINCORE; SQL statement:
UPDATE "DUBLINCORE" SET "MODIFIED" = ? WHERE "ID" = ? [50200-114]
	at org.h2.jdbc.JdbcPreparedStatement.executeBatch(JdbcPreparedStatement.java:1067)
	at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCRowMapper.updateSimpleRows(JDBCRowMapper.java:690)
	... 131 more