addremove was not correctly finding removed files when given a list of files to look at. These end up with a src of 'f' from walk() but no longer exist on the filesystem. Index: mine/mercurial/commands.py ===================================================================

+ hg init
+ hg add a
+ hg ci -m a -d 0 0
+ hg add b
+ hg diff
diff -r 3903775176ed b
--- /dev/null
+++ b/b
@@ -0,0 +1,1 @@
+123
+ hg diff -r tip
diff -r 3903775176ed b
--- /dev/null
+++ b/b
@@ -0,0 +1,1 @@
+123