BE_FolderSelectDialog, cancel returns no error

[nickorr]

Discussed in #234

^{Originally posted by michno-23 January 9, 2025}
BE_GetLastError returns 0 on macOS 15.2 when I click Cancel in the folder selection window (BE_FolderSelectDialog function). Plugin-version: 5.0.0

Unable to get the -1 result on 4.2.6 or 5.0.