Editor Find Bug?

I just downloaded version 13.1.1.5 today, but I had the problem in the previous version, too. In the editor when doing a Find or a Find/Replace it can't differentiate between a period and an underscore. For example, if I were looking for schema prefixes and I had the following in my program:

blue.some_table
blue_some_table

If I do a search on blue. it will find both. If I do a replace all for blue. and replace with red. It would give me this:

red.some_table
red.some_table

Anyone else seeing this?

Do you have Regular Expression checked for the search? If so, a period matches any character.

Yes. I didn't realize it did that.