$ git clone -n https://src.fedoraproject.org/rpms/nsd.git /var/lib/mock/f41-build-843702-162071/root/chroot_tmpdir/scmroot/nsd
Cloning into '/var/lib/mock/f41-build-843702-162071/root/chroot_tmpdir/scmroot/nsd'...
$ git fetch origin d97d5df661c15676b70515802478831d60fcf315:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nsd
 * [new ref]         d97d5df661c15676b70515802478831d60fcf315 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d97d5df Update to 4.10.1, fixes rhbz#2271940