fix when setting a string to a list field, it would comma separate ea…

…ch letter.

Seems to affect RegexVarReplace, but the fix may affect all the program.

dmClasses.py

@@ -1313,7 +1313,7 @@ def SetFieldValue(self, book, newValue, strField=None):
         newVal = newValue
 
         strReport = ''            
-        if FieldValue in dmGlobals.FIELDSLIST:
+        if FieldValue in dmGlobals.FIELDSLIST and dmGlobals.IsList(newVal) :
             if dmGlobals.SortLists:
                 newVal.sort()
             newVal = dmGlobals.CRLISTDELIMITER.join(newVal)