[GsoC 2019] Copy previous caption & description

[nicolas-raoul]

Steps to reproduce the problem:

1. In Android gallery, choose 2 pictures
2. Share to Commons app
3. Enter caption for first picture
4. Press Next
5. Press "Copy previous title & description"
6. Problem: caption does not get copied.

Also, the button should be renamed to "Copy previous caption & description"

[vanshikaarora]

I'll fix this in the next commit

[vanshikaarora]

Hey @nicolas-raoul, I have fixed the Issue here n the commit vanshikaarora@be6b726

[nicolas-raoul]

It works now, thanks for fixing! :-)

[nicolas-raoul]

Related: #3035