Godot: Crash on saving script

[batmanasb]

Operating system or device - Godot version:
Linux Mint 18 x64
Godot 2.0.4 Stable (Linux 64) (download from site)

Issue description (what happened, and what was expected):
The editor randomly crashes when I save a script. It happens only with old projects made in 2.0.3. I tried 2.0.3 again and confirmed that the issue is only on 2.0.4. Also, it seems to only occur when using the hotkey (ctrl+s) to save the script. I haven't gotten it to crash when using the menu to save (File > Save). I made a new project in 2.0.4 and the issue went away, but when I tried moving over all my important files (*.tscn and *.png) the issue came back. The Control.tscn and Control.gd was made in 2.0.4 and all I did was try and edit and save Control.gd while having Control.tscn open, and it crashed again, even though I haven't even touched the old files from the 2.0.3 project, but before moving over the old files, it worked just fine. I think the issue has something to do with the *tscn files from 2.0.3.

Steps to reproduce:

1. Open any project
2. Open any script
3. Make any small change (ex: add/remove newline)
4. Press ctrl-s to save script
5. Repeat steps 3 and 4 until it crashes (usually within 5 saves)

Link to minimal example project (optional but very welcome):
game.zip

Terminal Output (No actual error messages appeared, but it crashed very time)
batmanasb@MintySuitcase ~ $ /home/batmanasb/MEGA/Godot/Godot2.0/Godot_v2.0.4_stable_x11.64
OPENING: /home/batmanasb/MEGA/Godot/Projects/Rogue Voyage/game (::home::batmanasb::MEGA::Godot::Projects::Rogue Voyage::game)
VBoxContainer: 136,100
batmanasb@MintySuitcase ~ $ bind toptions
TextureButton: 16,-4
Label: 289,63
HBoxContainer: 70,27
settings changed
^C
batmanasb@MintySuitcase ~ $ /home/batmanasb/MEGA/Godot/Godot2.0/Godot_v2.0.4_stable_x11.64
OPENING: /home/batmanasb/MEGA/Godot/Projects/Rogue Voyage/game (::home::batmanasb::MEGA::Godot::Projects::Rogue Voyage::game)
VBoxContainer: 136,100
bind toptions
batmanasb@MintySuitcase ~ $ settings changed
No completion
^C
batmanasb@MintySuitcase ~ $

[DimaKiva]

I confirm.

[OniLink]

Can confirm. Arch Linux x64.

[akien-mga]

Damn :( I'm on it, will fix.

[akien-mga]

Backtrace from a crash when saving a level with a tileset:

Also saving modified external resource: res://sprites/tileset.tres

Thread 1 "Godot_v2.0.4_st" received signal SIGSEGV, Segmentation fault.
0x00000000015a3b0a in __dynamic_cast ()
(gdb) bt
#0  0x00000000015a3b0a in __dynamic_cast ()
#1  0x0000000000ba6e58 in EditorDirDialog::_item_collapsed(Object*) ()
#2  0x000000000092a8a4 in MethodBind1<Object*>::call(Object*, Variant const**, int, Variant::CallError&) ()
#3  0x00000000013a453e in Object::call(StringName const&, Variant const**, int, Variant::CallError&) ()
#4  0x00000000013fd961 in MessageQueue::_call_function(Object*, StringName const&, Variant const*, int, bool) ()
#5  0x00000000013fdbea in MessageQueue::flush() ()
#6  0x0000000000c57887 in SceneTree::input_event(InputEvent const&) ()
#7  0x000000000041a4f8 in InputDefault::parse_input_event(InputEvent const&) ()
#8  0x0000000000413694 in OS_X11::handle_key_event(XKeyEvent*, bool) ()
#9  0x0000000000413b91 in OS_X11::process_xevents() ()
#10 0x00000000004142c0 in OS_X11::run() ()
#11 0x0000000000410709 in main ()

[akien-mga]

Looks like this triggers the bug: https://github.com/godotengine/godot/commit/257d3706777bed2f07003f53435144f48707d020

[akien-mga]

Fixed by 5184b21. Could you guys try the 2.0 branch to confirm that the issue is fixed, and that there are no other regressions? I've also put a pre-compiled version of Linux x64 here: http://download.tuxfamily.org/godotengine/2.0.4/godot.x11.tools.64_hotfix.zip (built on Mageia 6).

[OniLink]

That seems to have fixed it on my end, I tried editing + saving a script about 20 or so times and it never crashed once.

[batmanasb]

Just tried my project that was crashing nearly instantly (first or second save), and it hasn't crashed in the last 30 or so saves! Great work!

[aaronfranke]

@akien-mga Any reason not to just mark it as 2.0.5 so that there isn't 4 version numbers?

[vnen]

@aaronfranke I think you are a couple of years too late... I mean, by this point this is only history, no need to touch it.