When active tab is PuTTy instance Quake Style doesn't work properly

[vystepanenko]

Versions

ConEmu build: 180528 x64
OS version: Windows 10 Pro x64 (ver 1709 (build 16299.431))
Used shell version (Far Manager, git-bash, cmd, powershell, cygwin, whatever): PuTTy 0.70 x64

Problem description

Minimize/Restore in Quake style doesn't work properly when active tab is PuTTy instance. In all other tab it is worked as expected

Steps to reproduce

1. I have default hotkey for Minimaze/Restore (Ctrl+`)
2. Open few tabs: Far, cmd, powershell and puTTy
3. If active tab is PuTTy instance, quake style doesn't work properly. ConEmu still minimaze and restore by hotkey but not in quake style. It happens instantly. Some time with little delay after I press hotkey
4. "Minimize window" button doesn't work at all. It happens only if active tab is PuTTy. In any other shell this button also works fine

Expected results

When PuTTy is active tab Quake style must work like in any other shell

Additional files

Settings: https://gist.github.com/vystepanenko/37c06744e1d324060517823440ab865b