A sketch and the feature built from it may share a name, and the sample and
oracle designs do. `timeline.add` refused such a recorded name, so a design's
own exported script failed to replay. `Document::insert_feature` now keeps the
name, as `add_feature` does; a blank name still gets a fresh one.
Co-authored-by: bherbruck <brennen.herbruck@gmail.com>
timeline.export_script (and solidcraft-cli script) writes a design's history as a command script that solidcraft-cli eval replays into the same design, so a bug that only shows on one design becomes a one-file repro. timeline.add restores one stored feature with its id, names and references, through the same checks a design file gets when it opens.
Closes#886. SychPL's #1078 approached the same issue independently; thanks to both.
Co-authored-by: SychPL <SychPL@users.noreply.github.com>
Colin Faulkingham