A fix has been commited in rev. #10403; as of now it should be possible to accurately specify the dimensions when using a geometrical bounding box too.
When however visual bounding boxes are used, and the width is changed for a selection of objects each having a different width, then this is still broken. I am not sure if this can be fixed easily. We could implement an iterative procedure though, to have Inkscape enter the same dimensions 10 times in a row ;-)
A fix has been commited in rev. #10403; as of now it should be possible to accurately specify the dimensions when using a geometrical bounding box too.
When however visual bounding boxes are used, and the width is changed for a selection of objects each having a different width, then this is still broken. I am not sure if this can be fixed easily. We could implement an iterative procedure though, to have Inkscape enter the same dimensions 10 times in a row ;-)