Objects shouldn't leave the page
In MuseScore 1.0, you are allowed to move things such as rests and markings outside of the bar.
In MuseScore 2.0 nightly build (4200), it's possible to move these objects off the page.
There are exceptions (such as ties), but could we generally have it that movements of such objects are restricted within the bar? It would help avoid confusion (and other issues) - if you applied a marking (e.g. dynamic), but it got lost somewhere (either in, or out of the score).
Using Mac 10.4.11.
(Thanks to Schepers for this)