$ git clone -n https://src.fedoraproject.org/rpms/gt.git /var/lib/mock/f40-build-2226974-52986/root/chroot_tmpdir/scmroot/gt
Cloning into '/var/lib/mock/f40-build-2226974-52986/root/chroot_tmpdir/scmroot/gt'...
$ git fetch origin d608c99ec751d11fd2cfbbf0a0ecad9b146c5a2d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gt
 * [new ref]         d608c99ec751d11fd2cfbbf0a0ecad9b146c5a2d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d608c99 Change path to read config provided by fluid-soundfont-lite-patches (#2253073)