$ git clone -n https://src.fedoraproject.org/rpms/ninja-build.git /var/lib/mock/f41-build-813144-148564/root/chroot_tmpdir/scmroot/ninja-build
Cloning into '/var/lib/mock/f41-build-813144-148564/root/chroot_tmpdir/scmroot/ninja-build'...
$ git fetch origin 48f5067107742b3c4569097a981fc2f4ca016d7a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ninja-build
 * [new ref]         48f5067107742b3c4569097a981fc2f4ca016d7a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 48f5067 Rebuilt for Python 3.13