Escape characters not implemented on connections

[LimestaX]

Tested versions

Reproduce able in 4.3.stable

System information

Windows 10 - vulkan Forward+ renderer, v4.3.stable

Issue description

Initial Issue:
Currently in live Godot 4.3 branch, accidentally inserted the "\" key at the end of a Node name. While adding and implemented the node, I connected a signal, saved and ran the scene, causing an issue with it immediately crashing, saved and relaunched to see the file could not be parsed, at some point in the process the following offending line was added.

Steps to reproduce

Rename a node to include \
example: new_button\
create a signal from the renamed node to any given node using the editor panel
save the scene
close and re-open scene to get parser error

Minimal reproduction project (MRP)

errorissue.zip

[LimestaX]

seems like whichever code adds the [connection] line to the tscn file doesn't safely add the required escape character

[LimestaX]

Issue appears to be line 2293 in godot / editor / plugins / resource_format_text.cpp , I might be wrong, investigating if there are any current branches associated with this line

[LimestaX]

pull request created