[PointWave] Reset button does not work after manually changing position of source

[FlorianGlawogger]

Describe the defect
The waves in the PointWave experiment do not originate from the source under certain preconditions (see next section)

To Reproduce
Steps to reproduce the behavior:

1. Go to PointWave experiment
2. Click on 'Add Source'
3. Move source with the mouse to somewhere, e.g. middle of the experiment water pool
4. In the top right, change source position to something different, e.g. 1.00 & 1.00
5. Click on the double arrow back (reset simulation button, to the left of the play button)
6. Source now appears to move to the previous position where it has been dragged to with the mouse, but if you now press 'Play', the waves originate from the manual position that was in the top right corner for example

Expected behavior
Not sure how the experiment was intended to work, either I expect all sources to be deleted anyway, or if the previous mouse position really is to be used, then the waves should also originate from that position.

Found in version
develop branch, 92fd345

Screenshots
waves do not originate from the source, but from the position where the source was before pressing the reset simulation button

Desktop (please complete the following information):

• OS: Windows
• Version 11

Additional context

[FlorianGlawogger]

Furthermore:

• The color sliders are not reset correctly (also at the start of the experiment)
• Reset also should reset the top right delete/add source correctly