$ git clone -n https://src.fedoraproject.org/rpms/magicmirror.git /var/lib/mock/f42-build-3465765-45743/root/chroot_tmpdir/scmroot/magicmirror
Cloning into '/var/lib/mock/f42-build-3465765-45743/root/chroot_tmpdir/scmroot/magicmirror'...
$ git fetch origin fd3e628baf9e2e8ceaeff12804efef791eed1c4a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/magicmirror
 * [new ref]         fd3e628baf9e2e8ceaeff12804efef791eed1c4a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd3e628 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild