mouse can not work when plugin ale configure g:ale_set_balloons=1

[hardboydu]

g:ale_set_balloons=0 is ok

ale issues #1689

[smhc]

Mouse support is also broken for me when using putty-latest+linux+vim-latest+g:ale_set_balloons=1. (TERM=putty-256color, although I've tried many other settings, including screen-256color)

My .vimrc has:
set mouse=a
set ttymouse=sgr

Interestingly if I start a tmux session with mouse support enabled ('set -g mouse on' in .tmux.conf) the mouse works ok inside tmux. Within the tmux session,TERM=screen-256color.

I also cannot get terminal mouse balloons working even without ale. I tried the latest build of vim (e76c4b237d41d0e62ca5d4fc76d1dd163fe222c0)