Issue with Click-and-Drag Transposition in an Atonal Key Signature

Today I came across a quirk with click-and drag transposition, and I'm wondering if I have something wrong in my settings, or if this is something that should maybe be addressed.

Some background information:
MuseScore Version: 3.6.2
Operating System: Arch Linux
Packaging: Community Repository

I found that, when working in an atonal key signature, selecting a passage and dragging up and down to transpose it results in it being transposed diatonically, as if it were in C Major. When working with atonal music, this often results in the exact contour of the melody being lost, and one would expect any transposition to be chromatic.

The attached "Sample.mscz" demonstrates this: mm. 1-2 give a music sample; mm. 3-10 give various click-and-drag transpositions of the sample as described; and mm. 11-12 demonstrate an example of chromatic transposition, the expected behavior, achieved by using the arrow keys.

I do know that, when using the arrow keys, as expected, music transposes chromatically. Is there any setting to make click-and-drag transposition behave similarly? According to the handbook (https://musescore.org/en/handbook/handbook-musescore-1/notation/transpo…) this behavior seems to be deliberate, but I may be missing something. Any help would be appreciated!