$ git clone -n https://src.fedoraproject.org/rpms/numix-gtk-theme.git /var/lib/mock/f42-build-3285602-41413/root/chroot_tmpdir/scmroot/numix-gtk-theme
Cloning into '/var/lib/mock/f42-build-3285602-41413/root/chroot_tmpdir/scmroot/numix-gtk-theme'...
$ git fetch origin 6c2e4ae207d369c86a73c821f644ab5aaf723f43:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/numix-gtk-theme
 * [new ref]         6c2e4ae207d369c86a73c821f644ab5aaf723f43 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c2e4ae Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild