$ git clone -n https://src.fedoraproject.org/rpms/python-sphinx-theme-builder.git /var/lib/mock/f45-build-33107-666/root/chroot_tmpdir/scmroot/python-sphinx-theme-builder
Cloning into '/var/lib/mock/f45-build-33107-666/root/chroot_tmpdir/scmroot/python-sphinx-theme-builder'...
$ git fetch origin 18a9e6076c57fb6fd6805ff8b6436c020be37416:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-sphinx-theme-builder
 * [new ref]         18a9e6076c57fb6fd6805ff8b6436c020be37416 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18a9e60 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild