- Fix build after dovcot2 update

Feature safe:	yes

mail/dovecot2-antispam-plugin/files/patch-src_mailbox.c

@@ -0,0 +1,23 @@
+diff -r 43880985e3dd -r 5e8351bcfb29 src/mailbox.c
+--- src/mailbox.c	Wed Dec 22 22:34:22 2010 +0200
++++ src/mailbox.c	Sun Feb 26 21:34:05 2012 +0200
+@@ -135,7 +135,7 @@
+     struct mailbox_transaction_context *t = ctx->transaction;
+     struct antispam_mailbox *asmb = STORAGE_CONTEXT(t->box);
+ 
+-    if (ctx->copying == 0)
++    if (ctx->copying_via_save == 0)
+     {
+ 	struct antispam_user *asu = USER_CONTEXT(t->box->storage->user);
+ 
+@@ -171,7 +171,7 @@
+ 
+     // if we are copying then copy() code will do everything needed
+     int ret = asmb->module_ctx.super.save_finish(ctx);
+-    if (ctx->copying != 0 || ret != 0)
++    if (ctx->copying_via_save != 0 || ret != 0)
+ 	return ret;
+ 
+     // since there is no source mailbox, let's assume
+
+