Minibuffer use (term resize) in Mikrotik shell breaks printing newlines

[mattchrist]

The Mikrotik shell displays its prompt at the bottom of the terminal. In doing so it issues some character sequence like this to move the cursor:

raw:

[9999B[1;9999r[9999B

asciified for human eyes:

^[[9999B^[[1;9999r^[[9999B

If I open a minibuffer after this sequence is printed, vterm runs the vterm--window-adjust-process-window-size function, after which no newlines are printed to the terminal -- all commands carriage-return and print over the same line at the bottom of the terminal.

I'm able to replicate the issue the Mikrotik shell causes with the following shell script:

while true ; do
    cat << EOF
[9999B[1;9999r[9999B
EOF
    sleep 10
done

The issue does not occur if I disable running the resize function.

Does anyone have any thoughts on how I can fix this issue?

[alinmear]

Also when resizing the vterm buffer, the output will be messed up. I haven't looked into it in detail, but atm vterm in combination with mikrotik is not usable.