$ git clone -n https://src.fedoraproject.org/rpms/cryfs.git /var/lib/mock/f45-build-5729-341/root/chroot_tmpdir/scmroot/cryfs
Cloning into '/var/lib/mock/f45-build-5729-341/root/chroot_tmpdir/scmroot/cryfs'...
$ git fetch origin 72dea347ed114cfe4369fb674e7f66dae3ba47e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cryfs
 * [new ref]         72dea347ed114cfe4369fb674e7f66dae3ba47e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 72dea34 Rebuilt for cryptopp-modern