How do I/Should I commit one set of changes to multiple branches?

Question

I'm not sure the best way to handle this, but I think what I want to do is push one set of changes to multiple branches, or duplicate the most recent changes in multiple branches.

I have one project, that has three separate targets, that (currently) only differ in "branding" (icons, splash screens, messages, etc.) and version number.  I just made a large set of changes that only affected shared code, so I checked the changes into origin/master.  I'd like the same "snapshot" of code to be in each of the brand-specific branches.

* Can I copy the last commit to origin/master to each branded branch?
* Is my only choice to check-out the code and commit to each branded branch?
* Can I do this a better way?

I'd like to do this using SourceTree (Mac), but I can use the Bitbucket web interface, or raw git commands, if necessary.

Seth · Accepted Answer

I'm not entirely sure if this will work with your branching strategy, but the ideal solution would be to merge master into each other branch.

If there are other changes to master that you don't want to propagate to the other branches, you can check out each other branch and "cherry-pick" the commit in question (in SourceTree, right-click the commit you want to cherry-pick). http://git-scm.com/docs/git-cherry-pick