I am using: Mercurial Distributed SCM (version 1.9.1), and I've done the following:
D:\code\mqtest>hg init
D:\code\mqtest>hg qinit -c
D:\code\mqtest>echo NonQueue > first
D:\code\mqtest>hg st
? first
D:\code\mqtest>hg add first
D:\code\mqtest>hg commit -m nonqueue
D:\code\mqtest>hg log
changeset: 0:2d4bac63616a
tag: tip
user: Tempos
date: Mon Sep 26 00:52:49 2011 +0300
summary: nonqueue
D:\code\mqtest>hg log --mq
D:\code\mqtest>hg qnew a
D:\code\mqtest>echo Queue0 > first
D:\code\mqtest>hg st
M first
D:\code\mqtest>hg qref
D:\code\mqtest>hg qcommit -m "queue 0"
D:\code\mqtest>echo Queue1 > first
D:\code\mqtest>hg qref
D:\code\mqtest>hg qcommit -m "queue 1"
D:\code\mqtest>echo Queue2 > first
D:\code\mqtest>hg qref
D:\code\mqtest>hg qcommit -m "queue 2"
D:\code\mqtest>hg st
D:\code\mqtest>hg log --mq
changeset: 2:38d08315a300
tag: tip
user: Tempos
date: Mon Sep 26 00:53:46 2011 +0300
summary: queue 2
changeset: 1:bb8b7da2e728
user: Tempos
date: Mon Sep 26 00:53:33 2011 +0300
summary: queue 1
changeset: 0:1ac551a65492
user: Tempos
date: Mon Sep 26 00:53:22 2011 +0300
summary: queue 0
And I tried to switch back to a particular revision in the mq:
D:\code\mqtest>hg up -r 0 --mq
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
D:\code\mqtest>cat first
Queue2
Why am I not seeing the Queue0 content?
When you update the patches inside .hg\patches with hg --mq update, then you're changing the mq patches behind mq's back. In other words: the patches themselves get the new content, but they are not re-applied automatically.
So the workflow you want is to do:
> hg qpop -a
> hg --mq update -r X
> hg qpush -a
where you first remove all patches, update them to look like you want, and then re-apply them.
Having hg --mq update do this for you would actually be an interesting idea, and I know that you're not the first one to be surprised about the lack of integration between the two commands.