$ git clone -n https://src.fedoraproject.org/rpms/libgda.git /var/lib/mock/f40-build-2096612-50410/root/chroot_tmpdir/scmroot/libgda
Cloning into '/var/lib/mock/f40-build-2096612-50410/root/chroot_tmpdir/scmroot/libgda'...
$ git fetch origin 53327d2bd4efb7c27594e2f20d70e26a8bf6e8fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgda
 * [new ref]         53327d2bd4efb7c27594e2f20d70e26a8bf6e8fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53327d2 Mariadb rebuild