$ git clone -n https://src.fedoraproject.org/rpms/python-mkdocs-macros-test.git /var/lib/mock/f45-build-31615-654/root/chroot_tmpdir/scmroot/python-mkdocs-macros-test
Cloning into '/var/lib/mock/f45-build-31615-654/root/chroot_tmpdir/scmroot/python-mkdocs-macros-test'...
$ git fetch origin 8a71b0ce650ff2ef67bef6f09f8535ea2b472454:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mkdocs-macros-test
 * [new ref]         8a71b0ce650ff2ef67bef6f09f8535ea2b472454 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a71b0c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild