$ git clone -n https://src.fedoraproject.org/rpms/python-pydantic.git /var/lib/mock/f40-build-2618055-64480/root/chroot_tmpdir/scmroot/python-pydantic
Cloning into '/var/lib/mock/f40-build-2618055-64480/root/chroot_tmpdir/scmroot/python-pydantic'...
$ git fetch origin 9f89e8adf7ca7defbfa7728f1812ed41a2d07484:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pydantic
 * [new ref]         9f89e8adf7ca7defbfa7728f1812ed41a2d07484 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f89e8a Update to 2.6.4. Fixes rhbz#2269288.