Please describe the problem:
When reviewing changes between two files, I use Ctrl-D to jump from one change to the next. It occurs frequently that this skips over one or more blocks of changed lines. The blocks of changed lines are correctly marked in the margin.


Steps to reproduce:
Load the two test files. There are about 12 changes between those files. Ctrl-D will only jump to the last one. Ctrl-E does nothing. Apparently, I cannot attach files to the bug report, please contact me (thiadmer at compuphase.com) for the files.

Actual results:


Expected results:


Does this happen every time?
Yes.

Other information:
After commenting out 4 lines (whose purpose I did not understand), Ctrl-D and Ctrl-E work correctly. I have not (yet) noticed any malfunction due to the removal of the 4 lines.

The lines are (version 1.2.1):
1103:        if c[1]+c1 == c[2]-c2:
1104:            continue

1110:        if chunk[1]+c1 == chunk[2]-c2:
1111:            continue