$ git clone -n https://src.fedoraproject.org/rpms/devscripts.git /var/lib/mock/f39-build-1667082-40808/root/chroot_tmpdir/scmroot/devscripts
Cloning into '/var/lib/mock/f39-build-1667082-40808/root/chroot_tmpdir/scmroot/devscripts'...
$ git fetch origin 75b70aa8f5ab09199a76935347f80cc10aa7f072:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/devscripts
 * [new ref]         75b70aa8f5ab09199a76935347f80cc10aa7f072 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75b70aa Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild