From a report on wikimedia-l:

http://lists.wikimedia.org/pipermail/wikimedia-l/2014-June/072986.html

The preview stage
gives you a chance to select some 'canned' brief edit summaries, or select
'other' and input your own.

Here's a screen recording I just made of the process:

https://www.mediawiki.org/wiki/File:Adding_an_edit_summary_in_Wikipedia_Android_app_version_2.ogv

Thank you. I didn't see the options (buttons) for pre-selected
summaries, nor the "Other" option.

On further experimentation, they are hidden above the top of the
screen, and I need to scroll up to see them.

I'm using the native browser on an Android 2.3.5 device.

I can confirm with the released app on my Nexus One (2.3.7); the "how did you improve the article" section briefly flashes on screen but then only the preview is visible; scrolling up reveals the section again.

(I also see some bad visual artifacting after using the 'other' box; the input fragment doesn't quite go away properly after filling it in and it obscures the section again -- and floats over the preview if you scroll back down)

Version: Stable
Severity: normal