Send a system message and a user message to chat completions.
Attempt to edit a user or assistant message - you can type letters where an insert is selected, but cannot type a new line. This effectively breaks any function.
An attempt at shift-enter re-sends the entire input.
The only thing that works is copy-pasting that linefeed from elsewhere.
Firefox 135, Windows 10.
Separately:
two extra spaces before every linefeed persists in assistant responses, even in gpt-4.5-preview.
attempting to highlight large selections of text beyond a page scrolll is frustratingly difficult, losing focus, selecting the wrong text, whether by shift-click, or holding down shift and using arrows to scroll.
disabling the switching of message roles within a chat is pointlessly undesired, especially without insertion or re-sort allowed. Automatic alternation of “add” roles for messages is bad behavior.