This issue also occurs even if you click within a text box but are not over an actual text character. For example if you have multiple lines and click a few spaces right of a short line that is not over a text character, and try to start a marquee select from there. It will make a new text box inside your text box in that case.
This issue also occurs even if you click within a text box but are not over an actual text character. For example if you have multiple lines and click a few spaces right of a short line that is not over a text character, and try to start a marquee select from there. It will make a new text box inside your text box in that case.