A plus sign in filenames is causing issues

[lukash]

Describe the bug
Renaming a file with a + in the name causes a new directory to be created, with the new name (and with a space instead of the plus sign) instead of doing the rename.

Cut & Paste of the file results in an "Operation Unsuccessful" error.

I haven't tested other operations, there'll probably more weird failures.

To Reproduce
Steps to reproduce the behavior:

1. Have a file named e.g. "test+.txt"
2. either tap three dots, go to Rename, enter "test2+.txt", tap SAVE
3. or select the file, tap the cut icon, then paste in a different directory

Expected behavior
A file rename working, cut&paste working.

Smartphone (please complete the following information):

• Device: Asus Zenfone 9
• OS: Android 12
• Rooted: No
• Version: 3.8.2

[VishnuSanal]

dupe #3560