Setting scale of a model back again to 100%

Hello, that's a great app but when we try to put an item in a room, we are rotating the item. And when we are rotating, then it scales down or up. And there's really no way to set it to 100% back again. Also maybe there could be an option for not letting scaling the model.

Start by reproducing model placement and rotation in the iOS viewer, then locate the code handling model scale during those interactions. Define how restoring 100% should behave and whether scaling can be disabled; done means both requested controls work without changing rotation behavior.

Written by the indexing model from the issue text.