emacs minor mode optional argument
With GNU Emacs 21.4.1 and desktop save/restore enabled, loading
"mercurial.el" from ".emacs" breaks Emacs' initialization sequence
when the desktop restore code loads a file under Mercurial control.
The function 'desktop-create-buffer' passes an argument to each
minor mode it activates for the buffer.
#!/bin/sh
mkdir a
cd a
hg init
echo foo > t1
hg add t1
hg commit -m "1" -d "0 0"
cd ..
hg clone a b
cd a
echo foo > t2
hg add t2
hg commit -m "2" -d "0 0"
cd ../b
echo foo > t3
hg add t3
hg commit -m "3" -d "0 0"
hg push ../a
hg pull ../a
hg push ../a
hg up -m
hg commit -m "4" -d "0 0"
hg push ../a