$ git clone -n https://src.fedoraproject.org/rpms/pixman.git /var/lib/mock/f42-build-3350040-45010/root/chroot_tmpdir/scmroot/pixman
Cloning into '/var/lib/mock/f42-build-3350040-45010/root/chroot_tmpdir/scmroot/pixman'...
$ git fetch origin f9417cd358898fff24f51df249c70e0689208c70:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pixman
 * [new ref]         f9417cd358898fff24f51df249c70e0689208c70 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9417cd Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild