Too large path causes drawing to become invisible when zooming in over a certain threshold

[Hachmann]

Steps to reproduce:

- Open attached SVG with Inkscape 0.92.2 or Inkscape master (tested with 0.92+devel (458da60, 2018-01-08))
- zoom in
- watch how position of the long straight lines changes during zooming in
- watch how everything disappears at 1216% zoom
- delete object with id path104378
- see that zooming works again

[Hachmann (marenhachmann)]

Additional: seems this path has been created with the measure tool. The user describes it like this:

"I think that path appeared whenever I was experimenting with the measuring tool: I was trying to figure out how to get "convert to item" to work instead of "mark dimension" (because at the time, I still wasn't certain of the difference between the two; I just found I had the need for measuring distances). Also, I'm not sure if this makes a difference, but I had just started jumping out to 100% zoom by pressing "1" on my keyboard, and then rapidly zooming in by clicking the page-wheel on my mouse. I might have pressed a random key without realizing it."

[Alvin Penner (apenner)]

confirmed on Windows 10, Inkscape 0.92.2 (5c3e80d, 2017-08-06)
confirmed on Windows 10, Inkscape 0.92+devel (0beb22f, 2017-12-29)

[Hachmann (marenhachmann)]

Thanks for testing, Alvin!

[Patrick Storz (ede123)]

It seems we have a lot of very similar issues:
- bug #1475875
- bug #1565174
- bug #1653694
- bug #1687514
- bug #1726431

Hard to tell if they're all related, though.

[Hachmann (marenhachmann)]

Yes, the symptoms are similar (two of those even were reported by me). Thanks for researching, Eduard!