After an update from Kubuntu 12.10 to 13.04 and, as a consequence, switching to Kate version 3.10.2 I noticed a change in the behavior of block select mode: the cursor is not allowed to move in regions where there are not valid characters, preventing an efficient use of the block select feature.

If I want to block select the whole example text below, starting from top left:
<example document>
It was
It was a sunny day in Paris
It was a sunny
<\example document>
, I am prevented to do so, as the cursor does not get past the 'y' in the last "sunny" in the last line., so the second line, which is the longest one, get truncated before " day in Paris".

Filling with dummy characters the last selected line, in order to make it the longest one, is a dirty workaround:
<example document>
It was
It was a sunny day in Paris
It was a sunny                    <-now it's the longest one
<\example document>

I am not familiar with the code, but I guess that the behavior of void KateView::ensureCursorColumnValid() at part/view/kateview.cpp:1803 and its caller may have a role in the bug.

Reproducible: Always

Steps to Reproduce:
1.Enable block mode
2.Try to move cursor past the end of a line
Actual Results:  
The cursor does not move past the end

Expected Results:  
The cursor should move past the end of the line in block mode, to allow selecting blocks having inhomogenuous line lenghts