$ git clone -n https://src.fedoraproject.org/rpms/ktouch.git /var/lib/mock/f43-build-side-115065-61049744-6588198/root/chroot_tmpdir/scmroot/ktouch
Cloning into '/var/lib/mock/f43-build-side-115065-61049744-6588198/root/chroot_tmpdir/scmroot/ktouch'...
$ git fetch origin 8b81320695c1cbe8233c21d3b0aa2e30e936b3cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ktouch
 * [new ref]         8b81320695c1cbe8233c21d3b0aa2e30e936b3cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b81320 25.07.80