$ git clone -n https://src.fedoraproject.org/rpms/psfex.git /var/lib/mock/f38-build-side-42-init-devel-753498-27664/root/chroot_tmpdir/scmroot/psfex
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-753498-27664/root/chroot_tmpdir/scmroot/psfex'...
$ git fetch origin d15a5807f251f531615abcff24c455107e28efe6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/psfex
 * [new ref]         d15a5807f251f531615abcff24c455107e28efe6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d15a580 Fix C99 compatibility issue