Don't share a counter when checking for circularity, list_merge(). src/ChangeLog addition: 2010-10-12 Aidan Kehoe <kehoea@parhasard.net> * fns.c (list_merge): Circularity checking here needs to be done independently for each list, they can't share a loop counter. Thank you for the bug report, Robert Pluim! tests/ChangeLog addition: 2010-10-12 Aidan Kehoe <kehoea@parhasard.net> * automated/lisp-tests.el: Make sure circularity checking with #'merge is sane.

/* XPM */
static char * down[] = {
"10 10 5 1",
" 	c Gray40",
".	c Gray40",
"X	c Gray90",
"o	c none",
"O	c Gray75",
"          ",
"..      XX",
"o..OOOOXXo",
"o..OOOOXXo",
"oo..OOXXoo",
"oo..OOXXoo",
"ooo..XXooo",
"ooo..XXooo",
"oooo.Xoooo",
"oooo.Xoooo"};