Steps to reproduce

1. Go to the library and search for Graph Modeling.
2. Go to 4th card where you are asked to enter weights of the edges.
3. Add an edge and click on the weight.
4. The input widget will appear.

Observed Behaviour
We can't clear the first digit (leftmost) of edge weight. So, if I need 99, I'll have to increase the first digit to 9 by clicking the up arrow and then type 9, which is kinda weird!