I have fixed the problem. It turned out to be caused by wrapping a comment line that was followed by a blank line, which was not covered by my test cases. New versions of the plugin have been uploaded to the downloads page. Also I was apparently logged into the wrong account before. I didn't even realize I had two accounts...
Ignore closing brace in comments when splitting braces in DereksAutoindent.
Remove unnecessary SCI_ENDUNDOACTION in PythonIndent.
-Fix bugs in DereksAutoindent and PythonIndent where setCurrentPos was used instead of gotoPos.
-Add ability to split braces on the same line to DereksAutoindent.
Actually null stripping was still needed, but I found a better way to do it.
Remove stripNull, it is not needed for appending paths.
-Use Scintilla class in PythonIndent.