I was experimenting with the Custom Properties and how it imports the Excel data.
During the experiment, I renamed two custom properties as follows:
Label 1 -> L1
Label 2 -> L2.
Afterward, I came across the following situation:
The Custom Properties dialog (screenshot) shows two node properties, named L1 and L2.
But the Properties Mapper dialog shows properties called Label 1 and Label 2, which do not exist! It also shows the new properties: L1 and L2; but allows me to use the old properties. (screenshot)
If the custom properties are modified, the Properties Mapper should not display the old properties; or if it shows them, it should also show an error against the non-existing properties.