$ git clone -n https://src.fedoraproject.org/rpms/perl-Convert-Color.git /var/lib/mock/f40-build-2302703-56892/root/chroot_tmpdir/scmroot/perl-Convert-Color
Cloning into '/var/lib/mock/f40-build-2302703-56892/root/chroot_tmpdir/scmroot/perl-Convert-Color'...
$ git fetch origin 309a13917032a5ebbcd7b48896ab94fc3b6392d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Convert-Color
 * [new ref]         309a13917032a5ebbcd7b48896ab94fc3b6392d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 309a139 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild