$ git clone -n https://src.fedoraproject.org/rpms/cgnslib.git /var/lib/mock/f45-build-3874-327/root/chroot_tmpdir/scmroot/cgnslib
Cloning into '/var/lib/mock/f45-build-3874-327/root/chroot_tmpdir/scmroot/cgnslib'...
$ git fetch origin 3fb17867dbf425afda6daaf2d95fe5005e7c39fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cgnslib
 * [new ref]         3fb17867dbf425afda6daaf2d95fe5005e7c39fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3fb1786 Switch to Unix Makefiles to avoid build issue with Ninja