[core] BinaryXMLParser injects xmlns: from other files on load

[S-trace]

Checks before report

• check latest unstable build (maybe issue already fixed)
  Not fixed
• check Troubleshooting Q&A section on wiki
  Not out-of-memory problem.
• search existing issues by exception message
  No exception message.

Describe error

• provide full name of method or class with error
  Not method.

• provide full java stacktrace
  No stacktrace.
  Note: no need to copy method fallback code (commented pseudocode)

• attach or provide link to apk file (double check apk version)
  res.apk.zip

  Note: GitHub don't allow attach files with .apk extension, but you can change extension by adding .zip at the end :)

Hello.

jadx-gui injects xmlns: attribute from another XML files to newly opened files, even if this xmlns: is not present in the opened file.

To check:

1. Open attached apk, open abc_fade_in.xml, copy its content to compare tool
2. Close jadx-gui
3. Open attached apk, open avd_show_password.xml then open abc_fade_in.xml, copy its content to compare tool
4. Compare abc_fade_in.xml content from both times, take a note about xmlns:aapt appeared

I pushed a fix to https://github.com/S-trace/jadx/tree/nsmap_reset
@skylot Could you please review it and allow me to open a pull request?

Thank you.

[skylot]

@S-trace what is a good catch, thanks! Please open PR.

P.S. Next time if you already made a fix for some new issue just open PR. By line from contributiong guide:

Before open a PR please discuss the change you wish to make via issue. PR without corresponding issue will be rejected.

I mean it is better to discuss change before starting working on this change especially if it is big.
So if you already implement the fix you can just open PR without asking my permission :)