Measure number vertical offset interpreted incorrectly

The intepretation of measure number offsets has changed since 3.4.2, I assume because of the various new features. While it seems that scores using default settings will still look the same, scores that have customized measure number style will look wrong.

The score attached below was created in 3.4.2, and measure number style was customized to place the measure number just barely above the staff. Load it into 3.4.2 and then into 3.5 Beta. You will see it's now way too high (-2 sp is being added to all offsets):

3.4.2:

3.5:

In the case of scores where the style had been modified to move measure numbers below the staff (eg, with offset 5.5 sp), this means they now appear directly within the staff instead of just below:

I guess there is sort of a workaround, change the offset, but then it won't look correct in 3.4.2.