"Cannot remove extraneous deployment marker file" leads to strange behavior

[dasniko]

"Cannot remove extraneous deployment marker file" leads to strange behavior

[thomasdarimont]

@dasniko I think I have a sound fix for this issue now, would you mind having a look? :)

[dasniko]

Thanks @lmsurpre for reporting, I'll have a look into this.

@thomasdarimont can you pls also have a look at it, as this extension was contributed by you. Thanks.

[dasniko]

Thanks @thomasdarimont and @lmsurpre for figuring out and having a solution which works on all tested platforms.
I'll review and merge the next hours/days.