$ git clone -n https://src.fedoraproject.org/rpms/dxpc.git /var/lib/mock/f42-build-3274324-41315/root/chroot_tmpdir/scmroot/dxpc
Cloning into '/var/lib/mock/f42-build-3274324-41315/root/chroot_tmpdir/scmroot/dxpc'...
$ git fetch origin a1619a6c7d1e3f2ebcc2a1dd99ea6650997db6a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dxpc
 * [new ref]         a1619a6c7d1e3f2ebcc2a1dd99ea6650997db6a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a1619a6 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild