Ignoring mark to mark anchors for a specific base glyph

I have baseA glyph with mark1 and mark2 anchors. I also have markA with mark1 and mkmk anchors, and markB glyph with mark2 and mkmk anchors. Normally when markB follows markA it will be positioned relative to it using the mkmk anchor. However, this is undesirable when the base is baseA as markB will clash with it. So what I want to do is to always position markB glyph using the mark2 when the base is baseA and ignore the mkmk anchor.

There is also a complication because there might be other mark glyphs between markA and markB.