$ git clone -n https://src.fedoraproject.org/rpms/perl-Directory-Scratch-Structured.git /var/lib/mock/f40-build-2623333-64965/root/chroot_tmpdir/scmroot/perl-Directory-Scratch-Structured
Cloning into '/var/lib/mock/f40-build-2623333-64965/root/chroot_tmpdir/scmroot/perl-Directory-Scratch-Structured'...
$ git fetch origin 6be1a246d66e7fe517292449776c23bd7bc430d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Directory-Scratch-Structured
 * [new ref]         6be1a246d66e7fe517292449776c23bd7bc430d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6be1a24 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild