$ git clone -n https://src.fedoraproject.org/rpms/pdbg.git /var/lib/mock/f38-build-side-42-init-devel-965278-28807/root/chroot_tmpdir/scmroot/pdbg
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-965278-28807/root/chroot_tmpdir/scmroot/pdbg'...
$ git fetch origin 2be6d0af38110e3592f1dc54a6b6a493576cdd94:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pdbg
 * [new ref]         2be6d0af38110e3592f1dc54a6b6a493576cdd94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2be6d0a Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild