Deleting a changeset

[Thibault North]

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Hello,
I just made a stupid mistake: commiting a file containing a password,
which was used for tests.
I cannot rollback it, not being the last changeset.

In that type of case, is there any way of removing that precious
information of the repository ?
(manually removing the changeset for example)

Or isn't it possible without killing the whole history ?
Thanks !
TNorth
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