$ git clone -n https://src.fedoraproject.org/rpms/git-remote-gcrypt.git /var/lib/mock/f41-build-side-1-2637547-26328/root/chroot_tmpdir/scmroot/git-remote-gcrypt
Cloning into '/var/lib/mock/f41-build-side-1-2637547-26328/root/chroot_tmpdir/scmroot/git-remote-gcrypt'...
$ git fetch origin 591fd873484d2598dfd9826d5a96cb890a1bf43c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/git-remote-gcrypt
 * [new ref]         591fd873484d2598dfd9826d5a96cb890a1bf43c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 591fd87 convert GPLv3 license to SPDX