$ git clone -n https://src.fedoraproject.org/rpms/golang-github-tonistiigi-units.git /var/lib/mock/f40-build-2595557-62744/root/chroot_tmpdir/scmroot/golang-github-tonistiigi-units
Cloning into '/var/lib/mock/f40-build-2595557-62744/root/chroot_tmpdir/scmroot/golang-github-tonistiigi-units'...
$ git fetch origin 50bb19cbb48518974a027ea2591303bb7a3c18a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-tonistiigi-units
 * [new ref]         50bb19cbb48518974a027ea2591303bb7a3c18a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50bb19c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild