LT-14722 Stop Crash when clicking Reversal Indexes

A stack overflow was happening when the Init method for
AllReversalEntriesRecordList was being called due to the Clerk being
null.

Change-Id: I5361f56e28f227a561cacce689e60077e16dcf87
Signed-off-by: rick_maclean <rick_maclean@sil.org>