Please describe the problem:
Some strigs which contain underscore, marked and copied to clipboard via keyboard (using Ctrl - Insert sequence), does not paste correctly into application using VTE widget (like gnome-terminal). Strangely, I can observe such behaviour only copying FROM Eclipse IDE (v 3.3) - however pasting to any other app not using VTE works correctly, so I do not blame Eclipse for that.
 For example:
When I mark string like: DOC_NAMESPACE in Eclipse, then copy it to clipboard (via Ctrl-C, or Ctrl_Ins, or context menu), then try to paste into gnome-terminal using Shift-Insert, it paste only first part of string, like: DOC. More weird: part of string which appear after paste operation depends of direction of marking!
On the other hand pasting via Ctrl+Shift+Insert, Ctrl+Shift+v or context menu works correctly.
 I figured out that must be some difference between Ctrl+Shift+Insert and Ctrl+Insert, so I downloaded source code of VTE 0.16.14, and found, that for Ctrl+Insert vte_terminal_paste_primary() is invoked (vte.c line 4362), and for Ctrl+Shift+Insert vte_terminal_paste_clipboard(). So, I changed vte_terminal_paste_primary() to vte_terminal_paste_clipboard() to verify my theory. As you can expect it started to work correctly, however it is obviously just proof-of-concept workaround, thus I submit this issue.
 Problem is not 100% reproducible (I cannot find more detailed pattern), but 75% can be good figure.

Steps to reproduce:
1. Run Eclipse IDE, mark and copy string with underlines in it.
2. Paste into VTE-based app like gnome-terminal using  Shift-Insert shortcut
3. 


Actual results:
String is pasted partialy (up to, or from underline)

Expected results:
complete string would appear

Does this happen every time?
not always, but close to 100%

Other information: