Android/mobile: Text selection + tap hold changes the selection

Checklist

• I have searched the issue tracker for open issues that relate to the same problem, before opening a new one.
• This issue only relates to a single bug. I will open new issues for any other problems.

Describe the bug

On Android and on Linux with -tags=mobile, when I select text and then tap and hold the selected text to get the cut/copy/paste menu, the selection is modified. This means, the tap and hold is like a left click + a right click on desktop. I expect tap and hold to behave like a right click only.

How to reproduce

1. Build an app for Android or with -tags=mobile with an entry with some text in it, p.e. the example app from issue #5297.
2. Select some text and release your finger.
3. Tap and hold in the center of the selected text.
4. The selection now begins or ends at the tap and hold position.

Screenshots

No response

Example code

See issue #5297.

Fyne version

develop

Go compiler version

1.26.1

Operating system and version

Arch Linux

Additional Information

No response