[PR2 Bug] Teleport Block Colors Revert to Default When Using Undo Button

[grassfire]

Problem: In level editor, clicking undo removes custom colors from teleport blocks even when there are more recent actions to be undone

Type of Problem: Probably client

Expected Behavior: Undo button reverses only the last action made

Actual Behavior: Undo button reverses last action, as well as reverting any recent teleport block colors to the default

Steps to Reproduce the Problem: 

1. In the level editor, place a teleport block (or several) and customize the color as many times as you want
   
2. Place or delete other blocks - any other changes that the undo button would reverse
   
3. Click undo. Your last action will be reversed like normal, AND recent teleport block colors will be removed at the same time.
   
4. If you continue to click undo until the teleport block color would normally revert to the default color, nothing happens
   

Additional Information: Certain actions will prevent this bug from occurring - for example, after testing a level, teleport block color changes are "locked in" and can't be reverted with the undo button at all (the placement of the block can still be undone, just not color changes)

Edit: Looked at it a bit more - any block with customizable options is affected like this, so item blocks and stat blocks too