6.2rc0 macOS application bundle is broken - “TortoiseHg” is damaged and can’t be opened. You should move it to the Trash.
I attempted to run the macOS Application for TortoiseHG 6.2rc0 on macOS 12.5. Error message is in the title. I used the context menu and held option/alt while selecting Open in order to be able to bypass opening an unsigned application, same error.