$ git clone -n https://src.fedoraproject.org/rpms/anaconda.git /var/lib/mock/f41-build-side-1-2810960-32924/root/chroot_tmpdir/scmroot/anaconda
Cloning into '/var/lib/mock/f41-build-side-1-2810960-32924/root/chroot_tmpdir/scmroot/anaconda'...
$ git fetch origin 9a7d9572d2ea472f8c05d392580af4c0d3fa36dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/anaconda
 * [new ref]         9a7d9572d2ea472f8c05d392580af4c0d3fa36dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a7d957 Update to 42.5 upstream release