$ git clone -n https://src.fedoraproject.org/rpms/arc-theme.git /var/lib/mock/f42-build-3282771-41399/root/chroot_tmpdir/scmroot/arc-theme
Cloning into '/var/lib/mock/f42-build-3282771-41399/root/chroot_tmpdir/scmroot/arc-theme'...
$ git fetch origin 117ad88b3ba354abb8667a9665f3f5eaf52d4ad0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/arc-theme
 * [new ref]         117ad88b3ba354abb8667a9665f3f5eaf52d4ad0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 117ad88 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild