Show only differences, show context and undo interaction

[WarrenStanley]

If I have a text compare with the following:

left pane:
test1
test2
test3
test
test
test
test
test
test
test
test

right pane:
test1
test2 1
test3
test
test
test
test
test
test
test
test

Show only differences selected and show context not selected.

Then apply the difference from line 2 from left to right.
Select show context
Undo (Ctrl-Z)

The change will have been undone, but so has the show context view change (although the tool bar still shows that show context is selected).

This seems to be a reset rather than an undo of the view change as following the same steps, but with show context on before making the change, then still toggeling show context (so no context is displayed) results in no context displayed after the undo.


Within a larger file with other differences (other differences visible), only the affected context is reset to not displaying the context of the differences.

[Erik]

To refilter the display, select "View -> Show Differences".

The reason for this is that editing can cause the visible lines not to match the display filter. If we didn't do this, lines could disappear while your editing which we be undesirable.

[WarrenStanley]

I would have thought that that consideration would only affect the removal/addition of displayed difference sections, not the application of the show context setting to those sections.

Attached is an image of what was confusing when I first saw it in the context of a large file/difference set.