merge: eliminate nodes from action list
- eliminate my and other from merge and copy
- eliminate node from get
- use mctx for get
- fix bug flag = a[2:]
- pass mctx to recordupdates
- use new filectx.size in recordupdates
% init
% commit
adding base
% qnew mqbase
% qrefresh
% qdiff
diff -r 67e992f2c4f3 base
--- a/base
+++ b/base
@@ -1,1 +1,1 @@ base
-base
+patched
% qdiff dirname
diff -r 67e992f2c4f3 base
--- a/base
+++ b/base
@@ -1,1 +1,1 @@ base
-base
+patched