$ git clone -n https://src.fedoraproject.org/rpms/tktray.git /var/lib/mock/f40-build-2084691-50031/root/chroot_tmpdir/scmroot/tktray
Cloning into '/var/lib/mock/f40-build-2084691-50031/root/chroot_tmpdir/scmroot/tktray'...
$ git fetch origin fd55a8425e44fa0ea3e8b819106a0f535248ed56:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tktray
 * [new ref]         fd55a8425e44fa0ea3e8b819106a0f535248ed56 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd55a84 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild