$ git clone -n https://src.fedoraproject.org/rpms/material-icons-fonts.git /var/lib/mock/f45-build-18100-508/root/chroot_tmpdir/scmroot/material-icons-fonts
Cloning into '/var/lib/mock/f45-build-18100-508/root/chroot_tmpdir/scmroot/material-icons-fonts'...
$ git fetch origin 6564ab684abf5477dea046b136e87087cbef1479:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/material-icons-fonts
 * [new ref]         6564ab684abf5477dea046b136e87087cbef1479 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6564ab6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild