Negative X causes a scrollbar to appear, even though it shouldn't

Nuklear's (0,0) is in the center of the image. When the window is moved horizontally into negative space, this happens: (ignore my half-baked rendering, I'm still working on the outlines)


But it only happens when the the scrollable area is in the horizontal negative space:

In the next image, moving the Nuklear window just 1 pixel to the left causes the horizontal scrollbar to appear. I added a dark overlay over one half of the image:

This does not happen vertically, only horizontally. The vertical position of the window has no effect, whether it is in positive or negative space.

Reproduce the issue by moving the Nuklear window one pixel into negative horizontal space and compare the horizontal and vertical behavior shown in the attached images. No source file or test is named; done means horizontal negative positioning no longer causes an unnecessary scrollbar while legitimate scrolling still works.

Written by the indexing model from the issue text.