"horizontal tab" characters not correctly encapsulated in Description area

Hi,

	I think I have found a bug but I would like to get confirmation here 
before filing a new bug on bugzilla.

	Here are the steps to reproduce the issue:
1. Create a new event
2. Open any text editor and type any text
3. Insert a "tab" character into the text
4. Copy-n-paste the text into the event's description
5. Save & close the event.
6. Open the event again

	At this point, the "tab" character would become the letter "t".  So it 
seems like the character was not correctly encapsulated during save.

	I'm using the latest TB and Lightning.

	Can anyone confirm this issue?

	Thx