convert: look up copies in getchanges instead of getcommit svn: defer path expansion until getchanges to reduce latency, as well as memory usage when converting incrementally.

#!/bin/sh

hg init
echo This is file a1 > a
hg add a
hg commit -m "commit #0" -d "1000000 0"
touch b
hg add b
rm b
hg commit -A -m"comment #1" -d "1000000 0"