$ git clone -n https://src.fedoraproject.org/rpms/golang-oras.git /var/lib/mock/f42-build-867214-174690/root/chroot_tmpdir/scmroot/golang-oras
Cloning into '/var/lib/mock/f42-build-867214-174690/root/chroot_tmpdir/scmroot/golang-oras'...
$ git fetch origin 66621c0059689dd1419d0af5282f086dcc896feb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-oras
 * [new ref]         66621c0059689dd1419d0af5282f086dcc896feb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 66621c0 Fix FTBFS - Closes rhbz#2300812