changing global property names might have a bug

In version 2.47, it seems that when I change the names of global properties (aka variables), their names are only partially changed in code that resides in button and objects. I’m having to go through all of my code objects to make sure the names have been updated. Often, a line of code that is something like “variable1 = variable1 + 2” will update as “variable1 = newVariable1name + 2”. It should have updated both parts of that expression, not just the second half.