$ git clone -n https://src.fedoraproject.org/rpms/kealib.git /var/lib/mock/f42-build-862949-171273/root/chroot_tmpdir/scmroot/kealib
Cloning into '/var/lib/mock/f42-build-862949-171273/root/chroot_tmpdir/scmroot/kealib'...
$ git fetch origin db53901e4ef56f686656b44e24866c8c0ef8e646:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kealib
 * [new ref]         db53901e4ef56f686656b44e24866c8c0ef8e646 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db53901 Rebuild (gdal)