Google responded and fixed the problem with the developer console. The new version was now successfully uploaded and should be available soon.
The new version greatly improves auto-scaling of the value axis. Especially for very small value ranges, the resulting Y axis scale is much more suitable for the available data. Users who enter meter readings in MWh for a single household will need this, since they will typically have consumption rates in the range of 0.01 to 0.02 MWh per day.