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由 Thomas Rast 提交于
There are some index handling subtleties in 'commit --only' that are best tested when we have an existing index, but an unborn or empty HEAD. These circumstances are easily produced by 'checkout --orphan', but we did not previously have a test for it. The main expected failure mode would be: erroneously loading the existing index contents when building the temporary index that is used for --only. Cf. http://article.gmane.org/gmane.comp.version-control.git/225969 and subsequent discussion. Signed-off-by: NThomas Rast <trast@inf.ethz.ch> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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