macOS, after notarization: uninstaller: invalid Info.plist (plist or signature have been modified)

Edit: Here "uninstall" is maintenancetool, but renamed via CPACK_IFW_PACKAGE_MAINTENANCE_TOOL_NAME.

I've build QtIFW from current master with a static Qt-6.2.4 on macOS (cf. QTIFW-3083). To facilitate notarization, I've added "option runtime" (cf. QTIFW-3084) to binarycreator. The package was accepted by Apple and could be installed. The packaged programs work as expected. However, the uninstaller "can not be run" (Finder message). Likely reason:

$ codesign --verify ~/xxx/uninstall.app
/Users/franke/xxx/uninstall.app: invalid Info.plist (plist or signature have been modified)

I suspect that this is related to the addition of "option runtime" (QTIFW-3084) to enable notarization. The man page states on "option runtime":

On macOS versions >= 10.14.0, opts signed processes into a hardened runtime environment which includes runtime code signing enforcement, library validation, hard, kill, and debugging restrictions.  These restrictions can be selectively relaxed via entitlements.

The "hard kill" is what I observe. Entitlements might help?

I am happy to test any suggestions or patches. Thanks!