Right now the tool options for transform tool in scale mode only accepts percentage as input. Reproducible: Always Expected Results: Tool should accept pixels and common measurements such as millimeters, inches etc. as input.
I agree -- but it's a wish, not a bug :-)
I think it's more than that, it's core functionality of the rescale tool. It's like you couldn't change the size of your brush.
WISHGROUP: Larger Usability Fixes Maybe we can also make kickstarter stretchgoal: WISHGROUP: Stretchgoal
Jospin has implemented this!