Clear Marker - Number Increment Behavior

[gimpycoder]

The number marker increments for each successive placed marker, however, upon using "clear marker" and placing another number, the value is the next incremented number.

Example:

1. select "Number" from Tool drop-down.
2. Place marker on board. Expected Value: 1
3. Clear the marker (If possible. There is another issue with clear marker)
4. Place marker on board. Expected Value: 1, Actual: 2

What should happen instead is the highest value placed should be the lowest+1 of the current collection of markers.