Bug#1152139: Acknowledgement (thunderbird: OpenPGP broken after ESR upgrade (TypeError: RNPLib.prepare_ffi is not a function))

[Andrew Savchenko]

Further information:

* With 153.5.1 all GPG-encrypted messaged in the inbox display blank
* Downgrading to 140.17.0esr-1~deb13u1 recovers the GPG functionality
* After the `thunderbird --allow-downgrade` key manager lists keys again