$ git clone -n https://src.fedoraproject.org/rpms/production-type-spectral-fonts.git /var/lib/mock/f42-build-3442844-45457/root/chroot_tmpdir/scmroot/production-type-spectral-fonts
Cloning into '/var/lib/mock/f42-build-3442844-45457/root/chroot_tmpdir/scmroot/production-type-spectral-fonts'...
$ git fetch origin dffd061baf604eb4bed7322fc06b9c9924ac9f98:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/production-type-spectral-fonts
 * [new ref]         dffd061baf604eb4bed7322fc06b9c9924ac9f98 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dffd061 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild