[Low priority] Cannot reconfigure dmg that does not have a profile associated to it.

[erikng]

While working on a 10.13.2 image, I made a mistake and needed to expand the DMG volume size via advanced options. When I went to drag the dmg and build a new one based off it, I got an error "No packages to install".

It turns out when you drag and drop a dmg, the "Apply updates" button is automatically checked and blocked from unchecking. For drag and drop apps, this doesn't result in an error, but for dmgs, this fails.

Given that this probably only impacts people like me (who actively support AutoDMGProfiles) it is a low priority, but if it's an easy fix, would love it if you could fix it.