It seems PasteUpMorphs sometimes installs a model.
That model causes the DNU when copied.

Best,
Karl

On Fri, Aug 12, 2022 at 8:26 PM karl ramberg <karlramberg at gmail.com> wrote:

> Weird bug.
> I got a DNU once, and looked at the issue in the debugger.
> I tried a second time and now I can't reproduce it.
> Is there some state in the image that is not initialized ??
>
> Side note: A holder can only be found in Supplies flap as far as I know.
> To test the issue one must show the Supplies flap.
>
> Best,
> Karl
>
>
> On Thu, Aug 11, 2022 at 5:10 PM Tim Johnson <digit at sonic.net> wrote:
>
>> Hi all,
>>
>> Fresh 6.0 image --
>>
>> 1) drag out a Holder from Supplies flap
>> 2) drag out a Rectangle from Supplies flap
>> 3) drop Rectangle into Holder  (note the Rectangle border becomes
>> extra thick)
>> 4) open a Halo over the Holder
>> 5) try to click on the Green "copy/duplicate" button
>> 6) get a DNU/MNU: MorphicModel1(Object) doesNotUnderstand:
>> #copyUniClassWith:
>>
>> Last time I tried this, it actually behaved differently.  It was more
>> like this:
>>
>> 1) Drag out a Holder
>> 2) Drag out a Rectangle
>> 3) Drop the Rectangle into the Holder
>> 4) Copy the Holder using the Halo green copy/duplicate (this would work)
>> 5) change the color of the embedded Rectangle via its inspector
>> 6) Try to copy the Holder now (this would fail, again via #veryDeepCopy)
>>
>> It's also a little strange that the first Rectangle dropped into the
>> Holder sees its border become thicker, while a second / third
>> Rectangle do not see their border width change.
>>
>> Thanks,
>> Tim
>>
>>
>>
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