Hi John, I've been working on migrating IM workflows over to vips and everything has been going very smoothly, thanks so much for your hard work and dedication.

One issue I have stumbled on is that when trying to use hist_find_ndim, vips is crashing on images with transparency. On Mac OS, I get:

$ vips hist_find_ndim tmp/test2.png tmp/test2_histogram.png
Abort trap: 6

And on Linux, I get:

vips hist_find_ndim tmp/test2.png tmp/test2_histogram.png
*** stack smashing detected ***: terminated
Aborted

This is on the latest build:

vips -v
vips-8.12.2-Tue Jan 25 09:34:32 UTC 2022

Is there something I need to do different with hist_find_ndim for these images? I couldn't find anyone else talking about this...