$ git clone -n https://src.fedoraproject.org/rpms/python-jsonschema-specifications.git /var/lib/mock/f38-build-side-42-init-devel-1414637-31434/root/chroot_tmpdir/scmroot/python-jsonschema-specifications
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1414637-31434/root/chroot_tmpdir/scmroot/python-jsonschema-specifications'...
$ git fetch origin e1e06a9f22a7ea0b2ac7e0de215d8b2d79ccb443:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jsonschema-specifications
 * [new ref]         e1e06a9f22a7ea0b2ac7e0de215d8b2d79ccb443 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1e06a9 Added the README