Add an option '-C|--copies' to hg status to show the source of copied files.
Copied files are displayed in the form:
A newname
oldname
%% no changes
%% no changes
%% uncompressed contents in repo
this is a test
%% uncompress our working dir copy
this is a test
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
%% uncompress our new working dir copy
this is a test