$ git clone -n https://src.fedoraproject.org/rpms/usermode.git /var/lib/mock/f40-build-790823-136877/root/chroot_tmpdir/scmroot/usermode
Cloning into '/var/lib/mock/f40-build-790823-136877/root/chroot_tmpdir/scmroot/usermode'...
$ git fetch origin ac22bb99e91811b4f195cbfb3992c6d6da533ec9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/usermode
 * [new ref]         ac22bb99e91811b4f195cbfb3992c6d6da533ec9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac22bb9 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild