$ git clone -n https://src.fedoraproject.org/rpms/perl-Color-RGB-Util.git /var/lib/mock/f40-build-2621495-64781/root/chroot_tmpdir/scmroot/perl-Color-RGB-Util
Cloning into '/var/lib/mock/f40-build-2621495-64781/root/chroot_tmpdir/scmroot/perl-Color-RGB-Util'...
$ git fetch origin 2035e33767bf8adf9e9079cd07023cc939afed55:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Color-RGB-Util
 * [new ref]         2035e33767bf8adf9e9079cd07023cc939afed55 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2035e33 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild