Made methods more robust to strange errors (arising from the fact that

some of the inquiry calls on DB objects should be available on
Connection objects to take subtransactions into account.)

lib/python/App/PersistentExtra.py

@@ -111,7 +111,9 @@ class PersistentUtil:
         if jar is None or oid is None: return None
         try: mv=jar.db().modifiedInVersion
         except: pass
-        else: return mv(oid)
+        else:
+            try: return mv(oid)
+            except: return jar.getVersion() 
         
         # BoboPOS 2 code:
         oid=self._p_oid
@@ -127,7 +129,9 @@ class PersistentUtil:
         if jar is None or oid is None: return None
         try: mv=jar.db().modifiedInVersion
         except: pass
-        else: return mv(oid)==jar.getVersion()
+        else:
+            try: return mv(oid)==jar.getVersion()
+            except: return 1
 
         # BoboPOS 2 code:
         jar=self._p_jar