Cannot install game update if cartridge contains an update itself

[FrostedGeulleisia]

Cannot install game update if cartridge contains an update itself

Bug description

If you attempt to install a game update, while a cartridge of said game is inserted into the console, and the cartridge contains any update partition (for example, re-releases of Pokémon Sword/Shield/Scarlet/Violet with DLC on cart). Attempting to install an update NSP of said title will cause the already installed update to be deleted, and throw error 2356-0004 (ContentAlreadyInstalled).

While not that big of a deal, since you can just take out the cartridge temporarily as a workaround, it is a regression, as attempting this with Goldleaf 1.0.0 installs the update with no issues whatsoever. I suspect it's caused by the new content management system, which no longer differentiates between SD/eMMC titles and the Gamecard.

To clarify, let me illustrate a scenario.

• Cartridge contains version 2.0.1, you have version 3.0.1 installed.
• You attempt to install a dump of the 4.0.0 patch.
• Error is thrown, and upon returning to the Home screen, the game seemingly gets downgraded (3.0.1 -> 2.0.1).
• Attempt to install the update again, same error.
• Cannot uninstall an update that's present on the cartridge, obviously.

Your setup

• Console firmware: 20.1.1

• CFW with version: Atmosphere 1.9.1

• Goldleaf version: behavior depends on version, see above

Bug reproduction

Attempt to install any game update, while a cartridge of said game containing a lower version update is inserted.

Additional information

This bug was introduced in 1.1.0, as it does not occur on 1.0.0.