After Eagle project import, schematic and board netlists are inconsistent:
footprints do not have sheetpaths assigned, schematics are unannotated.
One can update netlist either by references or timestamps, but timestamps
are empty in pcbnew, and updating by reference must by preceded by
annotation which may lead to broken links between board and schematics
(Eagle does not require references to end with a number, so KiCad annotater
will add numbers in such cases).
To fix the problem, there is a two step netlist update:
- update by reference without the annotation step, to assign
correct sheetpaths to footprints
- update by timestamp, after symbols are annotated, in order to
update references in the board
Fixes: lp:1748502
* https://bugs.launchpad.net/kicad/+bug/1748502