Check if session is already in use

[Nudin]

I often run in the following issue:

• Create a workspace sessions
• [optionally] close vim
• [optionally] reopen the session
• in some other terminal open up a different file in the same folder
• Result: vim-workspace will try to load the session in this second vim too
• Therefore it opens all the files open in the session
• Since all the files are already open in the first vim instance vim will ask me for each of them if I anyway want to open them even though they are in use by another vim-instance. If the session is big, this can mean I have to answer for example 15 times.

The disable_on_args option solves this issue – but then I have to remember that there is a session that I'd like to open.
I'd love to see vim-workspace to have some lock-mechanism that checks if the session is already in use.