[Bug]: Symlinking ~/downloads results in truncated shared file

[sevmonster]

Problem description

When using the Termux share intent for a file, that file is truncated to zero bytes, and is not copied to ~/downloads, if the directory is a symlink to shared storage (e.g. storage/shared/example).

I only initially noticed the issue because I don't have a particular purpose to have a dedicated app data directory for file sharing, and just symlinked it to Downloads, thinking it wouldn't cause problems.

Steps to reproduce the behavior.

1. termux-setup-storage && rmdir downloads && ln -s storage/downloads downloads
2. Open any file browser and share with Termux

What is the expected behavior?

If the file doesn't already exist, copy it to the destination (even if cross-device) and perform the chosen action (edit etc.)

System information

• Termux application version: 0.119.0-beta.2
• Android OS version: 15
• Device model: Google Pixel Fold