File opened with "open_encrypted_with_pass" and "READ_WRITE" mode failes to store data

[Kay-Eth]

Godot version

v3.5.stable.mono.official [991bb6a]

System information

Windows 11

Issue description

When I open a file using open_encrypted_with_pass method with READ_WRITE mode, seek_end of the file (but without it, does not work either) and then try to store_string some text I 'm getting an error:

E 0:00:02.128   store_buffer: File has not been opened in write mode.
  <C++ Error>   Condition "!writing" is true.
  <C++ Source>  core/io/file_access_encrypted.cpp:241 @ store_buffer()
  <Stack Trace> TestScene.gd:24 @ _input()

If I open a file with open method it works as expected.

I experienced this bug when I was trying to troubleshoot someone's problem on Reddit.

Steps to reproduce

Check minimal reproduction project. Just create a scene with Node node and attach this script to it.

Minimal reproduction project

extends Node


func _ready():
	var file = File.new()
	var err = file.open_encrypted_with_pass("user://file.txt", File.WRITE, "tralalalalala")
#	var err = file.open("user://file.txt", File.WRITE)
	if err == OK:
		file.store_line("Test")
		file.close()
	else:
		push_error(err)

func _input(event):
	if event is InputEventKey:
		if event.pressed and event.scancode == KEY_SPACE:
			var file = File.new()
			var err = 0
			
			err = file.open_encrypted_with_pass("user://file.txt", File.READ_WRITE, "tralalalalala")
#			err = file.open("user://file.txt", File.READ_WRITE)
			if err == OK:
				file.seek_end()
				file.store_string("Test" + str(OS.get_time()) + "\n")
				file.close()
			else:
				push_error(err)
			
			err = file.open_encrypted_with_pass("user://file.txt", File.READ, "tralalalalala")
#			err = file.open("user://file.txt", File.READ)
			if err == OK:
				print(file.get_as_text())
				file.close()
			else:
				push_error(err)

[Kay-Eth]

I read the documentation more carefully. There is a information, that the open_encrypted_with_pass method "Opens an encrypted file in write or read mode.". So I believe, that opening a file in READ_WRITE mode should not be possible to avoid confusion. Besides, the open method have a similar description: "Opens the file for writing or reading, depending on the flags.". The only difference is the -ing postfix and lack of "mode" word. Maybe the documentation needs an update?

[pytomtoto]

any news?