$ git clone -n https://src.fedoraproject.org/rpms/kf6-kimageformats.git /var/lib/mock/f42-build-867797-175816/root/chroot_tmpdir/scmroot/kf6-kimageformats
Cloning into '/var/lib/mock/f42-build-867797-175816/root/chroot_tmpdir/scmroot/kf6-kimageformats'...
$ git fetch origin 6cf108a1a53ce4bcce5786dad2879db32762605f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kimageformats
 * [new ref]         6cf108a1a53ce4bcce5786dad2879db32762605f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6cf108a Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild