GLib-GObject - value "0" of type 'gint' is invalid or out of range for property 'tile-height' of type 'gint'

[jhford-scout24]

CRITICAL - GLib-GObject - value "0" of type 'gint' is invalid or out of range for property 'tile-height' of type 'gint'
CRITICAL - GLib-GObject - value "0" of type 'gint' is invalid or out of range for property 'tile-width' of type 'gint'

I've noticed that between 2.11 and 2.16, this error message is showing up. It's happening in my unit test suite, but I'm not entirely sure which call is triggering it. It gets printed one time despite testing hundreds of images in that suite.

I'm going to dig into this in more depth, but I was thinking it might be something that is immediately apparent as to the cause.

This replicates on both Mac and Linux. Host is an Apple M2 Max and in all cases I'm using Vips V8.16

[jhford-scout24]

Ok, it seems that it's definitely related to Tiff export. If Tiff Params are provided, but those Tiff params are have a TileWidth or TileHeight value of 0 (the nil-value for this struct), then a Glibc error is printed, rather than any other error happening. I could prepare a patch that returns an error if either value is set to 0

[tonimelisma]

Thanks @jhford-scout24. A PR with unit tests would be greatly appreciated and speedily merged!