Erskine May (20.12: https://erskinemay.parliament.uk/section/4748/matters-already-decided-during-the-same-session/#footnote-item-5 https://erskinemay.parliament

Erskine May (20.12: https://erskinemay.parliament.uk/section/4748/matters-already-decided-during-the-same-session/#footnote-item-5 https://erskinemay.parliament.uk/section/4748/matters-alread...) covers some of the subtleties of such rules. > A motion or an amendment which is the same, in substance, as a question which has been decided during a session may not be brought forward again during that same session. > Whether the second motion is substantially the same as the first is finally a matter for the judgment of the Chair; in coming to a decision, the Chair may take into account external developments which may change the effect of an otherwise similar motion. > Some motions, however, have been framed with sufficient ingenuity to avoid the rule. > However, a question which has not been definitely decided may be raised again. EARN IT died in committee multiple times, but so do plenty of bills that probably should make it to the statute book.