$ git clone -n https://src.fedoraproject.org/rpms/python-frozenlist.git /var/lib/mock/f45-build-30774-647/root/chroot_tmpdir/scmroot/python-frozenlist
Cloning into '/var/lib/mock/f45-build-30774-647/root/chroot_tmpdir/scmroot/python-frozenlist'...
$ git fetch origin 98b9b00af7c4683eea95c059c2e1cdbcf6324938:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-frozenlist
 * [new ref]         98b9b00af7c4683eea95c059c2e1cdbcf6324938 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98b9b00 Simplify .gitignore