When using Compass to edit a document that exists in the database...

• click on any field name to rename it.
• Put a colon ( : ) in the name.

Result: The colon is immediately removed and the cursor teleports to the end of the string.

Expected Result:  A colon should work just as well as a semicolon or underscore.

(Our application code generates field names with colons, and we cannot use Compass to maintain or edit the database due to this issue).