$ git clone -n https://src.fedoraproject.org/rpms/golang-github-hdrhistogram.git /var/lib/mock/f38-build-side-42-init-devel-862623-28428/root/chroot_tmpdir/scmroot/golang-github-hdrhistogram
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-862623-28428/root/chroot_tmpdir/scmroot/golang-github-hdrhistogram'...
$ git fetch origin c1de9e642de8020092bfa3ff4b1db4b394c307c8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-hdrhistogram
 * [new ref]         c1de9e642de8020092bfa3ff4b1db4b394c307c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c1de9e6 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild