$ git clone -n https://src.fedoraproject.org/rpms/python-puremagic.git /var/lib/mock/f45-build-32095-657/root/chroot_tmpdir/scmroot/python-puremagic
Cloning into '/var/lib/mock/f45-build-32095-657/root/chroot_tmpdir/scmroot/python-puremagic'...
$ git fetch origin 8f23f863bfd3482ede48041d7ac5bd81203b58a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-puremagic
 * [new ref]         8f23f863bfd3482ede48041d7ac5bd81203b58a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f23f86 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild