Issue a warning if "-r ." is used with two working directory parents. Rationale for not aborting instead: The first parent is usually more important as it is the local branch during a merge and commands like 'hg diff' and 'hg diff -r.' behave still identically (except for the warning of course). Added a test for log -r. with one and two parents.

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requesting all changes

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adding changesets

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adding manifests

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adding file changes

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added 1 changesets with 1 changes to 1 files

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1 files updated, 0 files merged, 0 files removed, 0 files unresolved

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checking changesets

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checking manifests

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crosschecking files in changesets and manifests

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checking files

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1 files, 1 changesets, 1 total revisions