Branch graph mismatch when using individual tagging branch (BB-1121)

Hg's tag mechanism with two changesets for each tagging, a tagged changeset and a tagging changeset logged "Added tag xxx to changset xxxx", bring in an inequality between children branches of a tagged changeset: only one of them got the log about tagging history. This made me feel bad... so I created an individual tag branch to keep all tagging changesets: (check attachment hg-individual-tagging-branch.jpg)

https://bitbucket-assetroot.s3.amazonaws.com/site/master/20110119/2438/hg-individual-tagging-branch.jpg|hg-individual-tagging-branch

Every time I append tags I do it like:
{{

{ #!shell\\ $ hg update tag\\ $ hg tag -r develop v1.0a1\\ $ hg update develop\\ $ ...(do the following work on develop branch) }

}}

This work well for me, for hg log and for tortoiseHg. But when I pushed it to bitbucket, I recorgnize a mismatch near the tagging changeset: (check attachment bitbucket-branch-graph-mismatch.jpg)

https://bitbucket-assetroot.s3.amazonaws.com/site/master/20110119/2438/bitbucket-branch-graph-mismatch.jpg|bitbucket-branch-graph-mismatch

The screenshot is from my project [[https://bitbucket.org/izayoiframework/izayoiframework|IzayoiFramework]], near commit 204.