$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-mathutil.git /var/lib/mock/f38-build-side-42-init-devel-608420-26258/root/chroot_tmpdir/scmroot/golang-modernc-mathutil
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-608420-26258/root/chroot_tmpdir/scmroot/golang-modernc-mathutil'...
$ git fetch origin e5bedc4422df7d6cab371fe0b61671e32d895b5d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-mathutil
 * [new ref]         e5bedc4422df7d6cab371fe0b61671e32d895b5d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5bedc4 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild