An improper locking bug(e.g., deadlock) on the lock server

[ycaibb]

Hi, developers, thank you for your checking. I found a possible bug in UltraGrid, which locates in EmbeddableWebServer.
It seems the lock server is not released correctly when !server->initialize in the function serverStop?

https://github.com/CESNET/UltraGrid/blob/e3c926c8ff67586bf74c4cc0763a78c83ede9cf6/src/EmbeddableWebServer.h#L1515-L1526
Can you confirm this?

The original issue:
CESNET/UltraGrid#183

[ycaibb]

My problem has been resolved.

[hellerf]

Oh that certainly does look extremely suspicious! Thank you for reporting it