$ git clone -n https://src.fedoraproject.org/rpms/plexus-build-api0.git /var/lib/mock/f41-build-1185376-22044/root/chroot_tmpdir/scmroot/plexus-build-api0
Cloning into '/var/lib/mock/f41-build-1185376-22044/root/chroot_tmpdir/scmroot/plexus-build-api0'...
$ git fetch origin 80d4e1ad29970ae7d387d0d56573d74ac06ef088:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plexus-build-api0
 * [new ref]         80d4e1ad29970ae7d387d0d56573d74ac06ef088 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 80d4e1a Switch to a newer %patch syntax