Cursor doesn't change properly when clicking inside previously marked text.

OS: Windows 8 (can someone test this on OS X/Linux?)

To reconstruct:

- Switch to two-column layout (View -> Layout -> Columns:2)
- Open two files, one in each column
- Mark some text in file on the left
- Click into the file on the right, type some stuff
- Click back into the file on the left, inside the previously marked text
- Type some more stuff

In my case, it is wrongly typed in the right file, instead of the left. The cursor never switched back properly. This also happens for example when I use Find, and the results get highlighted in the File. When I click within the highlight, the cursor stays in the search box.