Unofficial extensions should not receive updates

[beer-psi]

Steps to reproduce

• Install an unofficial build of an official extension
• Said extension gets an update, update is shown in the app
• Update cannot be installed because signatures are different

Expected behavior

Unofficial extensions should not show updates

Actual behavior

Unofficial extensions received uninstallable updates (INSTALL_FAILED_UPDATE_INCOMPATIBLE)

TachiyomiJ2K version

1.6.0

Android version

Android 9

Device

Samsung Galaxy J3 Pro

Other details

No response

Acknowledgements

• [X] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open issue.
• [X] I have written a short but informative title.
• [X] If this is an issue with an extension, I should be opening an issue in the extensions repository.
• [X] I am reporting an issue exclusive to this fork. I have also checked that is not an issue on the main version of Tachiyomi
• [X] I have tried the troubleshooting guide.
• [X] I have updated the app to version 1.6.0.
• [X] I have updated all installed extensions.
• [ ] I have admitted that I am a clown by having checked this box, as I have not read these acknowledgements.
• [X] I have filled out all of the requested information in this form.

[Jays2Kings]

Do you have an example? I tried using an unoffical extension and don't see the issue