load extensions only after the ui object has been completely initialized
This fixes a traceback printed when hg tries to print another traceback
after an extension fails to be loaded. Add a test for that.
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added 1 changesets with 1 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions