Encoding test fails with database error on Sybase ASE 15.0.1

Attempting to run encoding test (admin/encodingtest.action) and it fails with a database error as follows (running jConnect 6.0 against ASE 15.0.1):

Cause:
com.sybase.jdbc3.jdbc.SybSQLException: Function LOWER invoked with wrong number or type of argument(s).
at com.sybase.jdbc3.tds.Tds.a(Unknown Source)

Stack Trace: [hide]

com.sybase.jdbc3.jdbc.SybSQLException: Function LOWER invoked with wrong number or type of argument(s).

at com.sybase.jdbc3.tds.Tds.a(Unknown Source)
at com.sybase.jdbc3.tds.Tds.nextResult(Unknown Source)
at com.sybase.jdbc3.jdbc.ResultGetter.nextResult(Unknown Source)
at com.sybase.jdbc3.jdbc.SybStatement.nextResult(Unknown Source)
at com.sybase.jdbc3.jdbc.SybStatement.nextResult(Unknown Source)
at com.sybase.jdbc3.jdbc.SybStatement.queryLoop(Unknown Source)
at com.sybase.jdbc3.jdbc.SybStatement.executeQuery(Unknown Source)
at com.sybase.jdbc3.jdbc.SybStatement.executeQuery(Unknown Source)
at com.mchange.v2.c3p0.impl.NewProxyStatement.executeQuery(NewProxyStatement.java:35)
at com.atlassian.confluence.admin.actions.debug.EncodingTestAction.retrieveLowerDatabaseTestString(EncodingTestAction.java:117)
at com.atlassian.confluence.admin.actions.debug.EncodingTestAction.execute(EncodingTestAction.java:65)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:168)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.opensymphony.xwork.interceptor.DefaultWorkflowInterceptor.intercept(DefaultWorkflowInterceptor.java:55)
at com.atlassian.confluence.core.ConfluenceWorkflowInterceptor.intercept(ConfluenceWorkflowInterceptor.java:39)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)

The patch provided in CSP-5887 does not work for Confluence 2.5.1

A new patch is required.