[fixed] Snap Image window suddenly close by particular image data.

[tkbd]

I test it with Snap Image tool on v2.2.6.
Then I got same error result.

I use these images and tried them in the AutoUV image mixer menu.
AutoUV Shader plugin
No error happend.
So,This may happen only with the Image Snap Tool.

If it has a difference....
The Image Snap tool used a special type of pull-down menu.
It has a text input field(It is for search in list?).