$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-GUID.git /var/lib/mock/f40-build-2016381-46186/root/chroot_tmpdir/scmroot/perl-Data-GUID
Cloning into '/var/lib/mock/f40-build-2016381-46186/root/chroot_tmpdir/scmroot/perl-Data-GUID'...
$ git fetch origin 30ea9bc32468c21ec0158725a2698d6a1a626184:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-GUID
 * [new ref]         30ea9bc32468c21ec0158725a2698d6a1a626184 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30ea9bc Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild