* Update plugins/download-commands from branch 'master'
to 47b783ea75036664dd591d2d3f1bcd06b68cdd5e
- Replace using refToId with Change.Id.fromRef
This fixes an issue where refToId returned null for change edits,
Change.Id.fromRef explicity adds change edit support,
so swapping from using refToId() to Change.Id.fromRef
fixes the issue. On the plus we're using a core method
instead of duplicating things.
Bug: Issue 12575
Change-Id: Id4619348fc7498dab69b4d888f360097bd9e80e3