Please describe the problem:
When user clicked on find button twice and close it through "X" button evolution
crashes

Steps to reproduce:
1. Launch and configure evolution
2. Compose a message and enter some text in body to find.
3. Click on the find button in tool bars.
4. Close the find window using find and then "X" button.
5. Do step 3 and 4 twice


Actual results:
Evolution Crashes. Below is the stack-trace.
current thread: t@1
=>[1] __pollsys(0x81137f0, 0x7, 0x0, 0x0), at 0xd2769025
  [2] _pollsys(0x81137f0, 0x7, 0x0, 0x0), at 0xd275cdc8
  [3] poll(0x81137f0, 0x7, 0xffffffff), at 0xd272b40e
  [4] g_main_context_iterate(0x80850e8, 0x1, 0x1, 0x806b480), at 0xd24da8e9
  [5] g_main_loop_run(0x820e6c8), at 0xd24daf26
  [6] gtk_dialog_run(0x80f6810), at 0xd2114529
  [7] main(0x4, 0x8047414, 0x8047428), at 0x805145a
~


Expected results:
It should not crash

Does this happen every time?
Yes

Other information: