$ git clone -n https://src.fedoraproject.org/rpms/g3kb-switch.git /var/lib/mock/f41-build-side-1-3002327-36527/root/chroot_tmpdir/scmroot/g3kb-switch
Cloning into '/var/lib/mock/f41-build-side-1-3002327-36527/root/chroot_tmpdir/scmroot/g3kb-switch'...
$ git fetch origin 81acb8c80a8fcd56cb32521d41b2991c02c74147:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/g3kb-switch
 * [new ref]         81acb8c80a8fcd56cb32521d41b2991c02c74147 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 81acb8c GNOME 47 support