Net statistics will show wrong values for "Shown component" after running Remove orphan transition/place

[Kenneth Yrke Jørgensen]

To reproduce

  - create a new net
  - add a place
  - add a new component
  - add a place and transition in the new component
  - select the first component
  - Open Net statistics, observe show component column displays 1 place, 0 transitions
  - Click remove orphan places

Observe show component column displays 0 places, 1 transition.
Expected to show 0 places, 0 transitions.

[Kenneth Yrke Jørgensen (yrke)]

The problem is in function removeOrphanTransitions/Place

the net statistics is run for each template, and the content shown will be from the last template
for (Template template : templates) {
 ...
 contents = template.model().getStatistics();
}