$ git clone -n https://src.fedoraproject.org/rpms/symcrypt.git /var/lib/mock/f38-build-side-42-init-devel-803345-28144/root/chroot_tmpdir/scmroot/symcrypt
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-803345-28144/root/chroot_tmpdir/scmroot/symcrypt'...
$ git fetch origin ef1d73347f0d387fd239ed5c30fc3c7209bcdf13:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/symcrypt
 * [new ref]         ef1d73347f0d387fd239ed5c30fc3c7209bcdf13 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef1d733 Added the README