Bug: multiline-comments turn into run-commands after the use of the "Undo" button.

[git24chris]

Hi Folks,

guess this is a bug.

I added multi-line comments with CR/LF at the end in my macro for my documentation.
Once I press the "undo" button, the whole mess starts. Suddenly, the comments turn into Run commands. See my screenshot attached. Everything was fine until I pressed the "undo" button.

I cannot tell if the root is the huge comment, multi-lines in the comment itself, and if that format is getting lost, or if it was the undo. Needless to say, a couple of hours of work is lost. With that, an excellent tool is made unreliable. I'm running v5.4.1