$ git clone -n https://src.fedoraproject.org/rpms/python-rstcheck-core.git /var/lib/mock/f40-build-2246914-53842/root/chroot_tmpdir/scmroot/python-rstcheck-core
Cloning into '/var/lib/mock/f40-build-2246914-53842/root/chroot_tmpdir/scmroot/python-rstcheck-core'...
$ git fetch origin 0db9221a45f12be5c21fdfaf25ef24d29f79aa75:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-rstcheck-core
 * [new ref]         0db9221a45f12be5c21fdfaf25ef24d29f79aa75 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0db9221 Update to 1.1.1. Fixes rhbz#2238165.