Applying a heading sometimes also changes text in following lines in Super Editor

[raacampbell]

I have several times run into the situation where applying a heading (e.g. H1) to a line in the Super Editor also changes the following lines. This does not happen if I leave a newline between my target line and following lines. If I delete the newline, bringing the following paragraph up one line, then it suddenly takes on the heading font.

I can not provide steps to reproduce because it does not happen every time. I think, but am not certain, that it happens on text I have copied and pasted into the editor from somewhere else.

Expected behavior It is expected that applying a heading should affect only the line in question.

Desktop (please complete the following information):

• OS: Mac OS 14.2.1
• Browser n/a
• Version 3.191.18