Using down/up strokes or articulations at the bottom impacts position of annotations on top.

[louisantoinem]

When adding down/up strokes and/or articulations at the bottom of the stave, they cause annotations (such as chord names) to be written lower in order to leave the needed space for the down/up strokes. Which is good!

But even when these annotations are written on top of the stave, their position is (for no reason) impacted by the presence of the down/up strokes.

Look at this snippet:

tabstave notation=false
notes 4-5-6/3 10/1 $A,B,C$ | 5d-4u-Xd/3 2/2 $A,B,C$
options space=100

tabstave notation=false
notes 4-5-6/3 10/1 $.top.$ $A,B,C$ | 5d-4u-Xd/3 2/2 $.top.$ $A,B,C$
options space=20

Result can be seen here: https://www.dropbox.com/s/wuq4zp8pyf7sl5j/githubissue01.png?dl=0

In the second bar of the second stave, A and B are written higher than C, but there is no need for that. A B and C should be written on the same Y position (i.e. the one C currently has).