AddinShmemInitLock in pgws_shmem_startup

[RekGRpth]

Where is LWLockAcquire(AddinShmemInitLock, LW_EXCLUSIVE); in pgws_shmem_startup? See pgss_shmem_startup for example.

[Medvecrab]

Yeah, seems that we've lived without it from the initial commit 10 years ago. Will fix in a couple of days, thanks for the report!

[Medvecrab]

Added in 24cbdfa, will be merged with #111