[BUG] Database Password with Invalid char

[dicamarques14]

Checks

• I have read the FAQ section, searched the open issues, and still think this is a new bug.

Describe the bug you encountered:

I update my database to v4 and now I can't open it with the following error:
"The input is nota valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters."

My password contains A-Z chars, a number and a underscore '_'

Describe what you expected to happen:

Expected to accept the password I always used, with the version 3 of the database

What version of Keepass2Android are you using?

1.10-pre

Which version of Android are you on?

14