room_next() and room_previous() return -1 instead of ref room -1

[gm-bug-reporter]

Description

Using room_next() or room_previous() when a valid room isn't available to return results in -1, instead of the asset handle ref room -1.

Steps To Reproduce

In a new project, create a script and paste the following:

show_message($"room_next(room): {room_next(room)}") // returns -1
show_message($"room_previous(room): {room_previous(room)}") // returns -1

Which version of GameMaker are you reporting this issue for?

IDE v2024.1300.0.720 Runtime v2024.1300.0.733

Which operating system(s) are you seeing the problem on?

Windows 10.0.26100.0

Which platform(s) are you seeing the problem on?

Windows

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