Emacs: separate limitations of revision range and shown changesets.
For revision range limitation,
use "-r" opt with range notation at "hg log" invocation, and
use hg-rev-completion-limit as default value.
For shown changesets limitation,
use "-l" opt at "hg log" invocation, and
use hg-log-limit as default value.
#!/bin/sh
mkdir a
cd a
hg init
echo foo > b
hg add b
hg ci -m "b" -d "1000000 0"
chmod -w .hg
cd ..
hg clone a b
chmod +w a/.hg # let test clean up
cd b
hg verify