mob/dead/observer fails to GC

[GDNgit]

[2022-10-09T19:02:58] Beginning search for references to a /mob/dead/observer. [2022-10-09T19:02:58] Finished searching globals [2022-10-09T19:05:02] Finished searching atoms [2022-10-09T19:05:16] Finished searching datums [2022-10-09T19:05:16] Finished searching clients [2022-10-09T19:05:16] Completed search for references to a /mob/dead/observer. [2022-10-09T19:05:16] GC: -- [0x2100000d] | /mob/dead/observer was unable to be GC'd --

Steps to reproduce the problem: Send a ghost back to the lobby

Extra information: Very likely related to innate byond stuff, due to the fact the GC finder can't get a ref