diff --git a/gramps/cli/clidbman.py b/gramps/cli/clidbman.py
index d88e86dac..bb570bcec 100644
--- a/gramps/cli/clidbman.py
+++ b/gramps/cli/clidbman.py
@@ -148,8 +148,8 @@ class CLIDbManager(object):
         from gramps.gen.db import META, PERSON_TBL
         env = db.DBEnv()
         flags = db.DB_CREATE | db.DB_PRIVATE |\
-            db.DB_INIT_MPOOL | db.DB_INIT_LOCK |\
-            db.DB_INIT_LOG | db.DB_INIT_TXN | db.DB_THREAD
+            db.DB_INIT_MPOOL |\
+            db.DB_INIT_LOG | db.DB_INIT_TXN
         try:
             env.open(file_name, flags)
         except:
diff --git a/gramps/gen/db/bsddbtxn.py b/gramps/gen/db/bsddbtxn.py
index d55847502..62624b516 100644
--- a/gramps/gen/db/bsddbtxn.py
+++ b/gramps/gen/db/bsddbtxn.py
@@ -198,8 +198,8 @@ if __name__ == "__main__":
     x = db.DBEnv()
     print("3")
     x.open('/tmp', db.DB_CREATE | db.DB_PRIVATE |\
-                         db.DB_INIT_MPOOL | db.DB_INIT_LOCK |\
-                         db.DB_INIT_LOG | db.DB_INIT_TXN | db.DB_THREAD)
+                         db.DB_INIT_MPOOL |\
+                         db.DB_INIT_LOG | db.DB_INIT_TXN)
     print("4")
     d = dbshelve.DBShelf(x)
     print("5")
diff --git a/gramps/gen/db/write.py b/gramps/gen/db/write.py
index 8e4b29afd..70198dc56 100644
--- a/gramps/gen/db/write.py
+++ b/gramps/gen/db/write.py
@@ -495,8 +495,8 @@ class DbBsddb(DbBsddbRead, DbWriteBase, UpdateCallback):
         
         # The DB_PRIVATE flag must go if we ever move to multi-user setup
         env_flags = db.DB_CREATE | db.DB_PRIVATE |\
-                    db.DB_INIT_MPOOL | db.DB_INIT_LOCK |\
-                    db.DB_INIT_LOG | db.DB_INIT_TXN | db.DB_THREAD
+                    db.DB_INIT_MPOOL |\
+                    db.DB_INIT_LOG | db.DB_INIT_TXN
 
         # As opposed to before, we always try recovery on databases
         env_flags |= db.DB_RECOVER
@@ -1135,11 +1135,6 @@ class DbBsddb(DbBsddbRead, DbWriteBase, UpdateCallback):
             self.transaction_abort(self.transaction)
         self.env.txn_checkpoint()
 
-        lockstats = self.env.lock_stat()
-        _LOG.debug("lock occupancy: %d%%, locked object occupancy: %d%%" % (
-                round(lockstats['maxnlocks']*100/lockstats['maxlocks']),
-                round(lockstats['maxnobjects']*100/lockstats['maxobjects'])))
-
         self.__close_metadata()
         self.name_group.close()
         self.surnames.close()
@@ -2055,8 +2050,8 @@ class DbBsddb(DbBsddbRead, DbWriteBase, UpdateCallback):
 
         # The DB_PRIVATE flag must go if we ever move to multi-user setup
         env_flags = db.DB_CREATE | db.DB_PRIVATE |\
-                    db.DB_INIT_MPOOL | db.DB_INIT_LOCK |\
-                    db.DB_INIT_LOG | db.DB_INIT_TXN | db.DB_THREAD
+                    db.DB_INIT_MPOOL |\
+                    db.DB_INIT_LOG | db.DB_INIT_TXN
 
         # As opposed to before, we always try recovery on databases
         env_flags |= db.DB_RECOVER
diff --git a/gramps/plugins/tool/mergecitations.py b/gramps/plugins/tool/mergecitations.py
index 22a11c1d2..855489f69 100644
--- a/gramps/plugins/tool/mergecitations.py
+++ b/gramps/plugins/tool/mergecitations.py
@@ -188,8 +188,8 @@ class MergeCitations(tool.BatchTool,ManagedWindow):
         
         db.disable_signals()
         num_merges = 0
-        with DbTxn(_("Merge Citation"), db) as trans:
-            for handle in db.iter_source_handles():
+        for handle in db.iter_source_handles():
+            with DbTxn(_("Merge Citation"), db) as trans:
                 dict = {}
                 citation_handle_list = list(db.find_backlink_handles(handle))
                 for (class_name, citation_handle) in citation_handle_list: