$ git clone -n https://src.fedoraproject.org/rpms/xclock.git /var/lib/mock/f40-build-789886-136126/root/chroot_tmpdir/scmroot/xclock
Cloning into '/var/lib/mock/f40-build-789886-136126/root/chroot_tmpdir/scmroot/xclock'...
$ git fetch origin 93baad36fdea7f7a08b68beb0b82d0e3feb34241:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xclock
 * [new ref]         93baad36fdea7f7a08b68beb0b82d0e3feb34241 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93baad3 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild