$ git clone -n https://src.fedoraproject.org/rpms/golang-github-bep-clock.git /var/lib/mock/f39-build-1503939-34993/root/chroot_tmpdir/scmroot/golang-github-bep-clock
Cloning into '/var/lib/mock/f39-build-1503939-34993/root/chroot_tmpdir/scmroot/golang-github-bep-clock'...
$ git fetch origin 2254ae8759c89c7ac9bb9ae13d14d22b378f3234:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-bep-clock
 * [new ref]         2254ae8759c89c7ac9bb9ae13d14d22b378f3234 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2254ae8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild