$ git clone -n https://src.fedoraproject.org/rpms/community-mysql.git /var/lib/mock/f39-test-2568946-62231/root/chroot_tmpdir/scmroot/community-mysql
Cloning into '/var/lib/mock/f39-test-2568946-62231/root/chroot_tmpdir/scmroot/community-mysql'...
$ git fetch origin 25d2a12f9617ea2e70fd649bb2d8c7d459ccf87a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/community-mysql
 * [new ref]         25d2a12f9617ea2e70fd649bb2d8c7d459ccf87a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25d2a12 Testsuite checked