I suspect you didn’t completely reverse your changes, and that causes the patching to fail.
The general recipe is this:
find out which files are patched by my patch:
grep +++ /usr/share/patchmanager/patches/patch-volume-fine-control/unified_diff.patch
+++ /usr/share/jolla-settings/pages/sounds/VolumeSliderController.qml 2021-08-20 08:28:10.084498076 +0200
+++ /usr/share/lipstick-jolla-home-qt5/volumecontrol/VolumeControl.qml 2021-08-20 08:33:03.812916850 +0200
find out which packages own these files:
rpm -qf /usr/share/jolla-settings/pages/sounds/VolumeSliderController.qml /usr/share/lipstick-jolla-home-qt5/volumecontrol/VolumeControl.qml
download the packages:
pkcon download /tmp jolla-settings-system
pkcon download /tmp lipstick-jolla-home-qt5
extract the package contents
rpm2cpio /tmp/jolla-settings-system*.rpm | cpio -id
rpm2cpio /tmp/lipstick-jolla-home-qt5*.rpm | cpio -id
You now have a directory structure under
/tmp/extract which contains all the files from the packages. You can now sync up the installed ones with the ones from the package.
Remember to clean up the things in
/tmp after you’re done to save some precious memory.
You could also simply do a
pkcon install --allow-reinstall jolla-settings-system but the above is the general approach to compare package and installed files. Also, doing a reinstall is sometimes a bit dangerous because of pre/post scripts that may change things you do not want changed.
It’s also NOT smart to have any patches applied while running that.