Jetbot breaks with JetPack 4.3/TensorFlow 2.0

I recently upgraded my Jetbot to JetPack 4.3 using the instructions at to use TensorFlow 2.0 for a project.

Unfortunately after a long installation process, I find that jetbot is broken in JetPack 4.3. When I try to use any classes in jetbot, it internally imports tensorflow.NodeDef which does not seem to work in TensorFlow 2.0 and fails with the error message:

ImportError: cannot import name 'NodeDef'

On further analysis it appears that Jetbot is not fully compatible with JetPack 4.3. The NodeDef module is part of the TensorFlow 1.x versions. Note that, JetPack 4.3 comes with TensorFlow 2.0

Does any solution exist to resolve this issue?
When is Jetbot going to be upgraded to JetPack 4.3?

Please see the snapshot of error message below. My TensorFlow and JetPack environment is as follows.

Any thoughts or solutions will be much appreciated. I cannot drop the TensorFlow to previous version as I have to use version 2.0 for my project.

JetPack version:

jetbot@jetbot-desktop:~/Notebooks/my_collision_avoidance$ JETSON_L4T_STRING=$(head -n 1 /etc/nv_tegra_release)
jetbot@jetbot-desktop:~/Notebooks/my_collision_avoidance$ JETSON_L4T_RELEASE=$(echo $JETSON_L4T_STRING | cut -f 2 -d ' ' | grep -Po '(?<=R)[^;]+')
jetbot@jetbot-desktop:~/Notebooks/my_collision_avoidance$ JETSON_L4T_REVISION=$(echo $JETSON_L4T_STRING | cut -f 2 -d ',' | grep -Po '(?<=REVISION: )[^;]+')
jetbot@jetbot-desktop:~/Notebooks/my_collision_avoidance$ JETSON_L4T_VERSION="$JETSON_L4T_RELEASE.$JETSON_L4T_REVISION"
jetbot@jetbot-desktop:~/Notebooks/my_collision_avoidance$ echo "$LOG Jetson BSP Version:  L4T R$JETSON_L4T_VERSION"
 Jetson BSP Version:  L4T R32.3.1

Error screenshot: