So it's a feature, not a bug? I noticed the problem this week-end, at the beginning of last week a multi-object pad worked (I'm on the freecad-daily ppa). Having to create multiple bodies when you want a number of objects spaced at precise distances is ... annoying to say the least
Real world use case this week-end: 8mm thick part I needed to cut from 4mm plywood, designed the two halves - one has a hole, the other has the same hole + a nut trap, they needed to be aligned on one axis and placed one endmill diameter apart on the other; I ended up having 2 bodies and shape binders and all that, instead of a simple pad + one pocket for the nut trap.
Now I'm afraid to open the 37-identical-hexagons-spaced-2mm-apart-because-there-is-no-hexagonal-array-tool file I worked on last week (that's a true torture test for the constraint solver, too).