Comment 10 for bug 1340687

[Impact]

The current alternate scroll patch is flawed because the terminal apps using GTK+2 version of VTE library should also be patched in order for the alternate scroll to work. This means that mate-terminal, roxterm-gtk2, lxterminal (and other terminal apps that aren't patched in all Ubuntu releases) don't have the alternate scroll enabled.

The proposed new patch that's contained in the debdiffs makes alternate scroll work always, so no patching will be required for any terminal apps.

So, the old patch should be replaced with the new one in all current stable releases of Ubuntu.

[Test Case]

Steps to reproduce:
1. Run mate-terminal or any other non-patched terminal app using GTK+2 version of VTE library.
2. Run "man apt-get" (any other manpage will work too of course).
3. See that scrolling with mouse wheel doesn't work on the manpage.

[Regression Potential]

After almost a year of testing the patch in various stable releases of Ubuntu, I found no regressions.
I consider the regression risk to be very low here.