Uwe Kleine-König noticed that under certain circumstances, name-rev
picked a non-optimal tag. Jeff King analyzed that name-rev only
takes into account the number of merge traversals, and then the
_last_ number in the description.
As an easy way to fix it, use a weighting factor for merge traversals:
A merge traversal is now made 65535 times more expensive than a
first-parent traversal.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Acked-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>