Assuming that a narrow result on a yes/no vote on a general concept means that the “will of your constituents” falls on one side of a complex policy issue irrespective of details of the concrete policies embedded in the available concrete realization of the broad concept that were not known at the time of the vote is quite ludicrous, even without the side that ultimately won using specific concrete descriptions as a sales pitch that conflict with that reality.

That's especially true when equally non-binding but current polling of your constituents on the same question shows that the opposite side quite likely leads now that the concrete options are known.

It's a well-established British Constitutional principal that a Parliament cannot bind a future Parliament. Why would one view the public will ant differently, even if it were fully informed?