Soft-forks are not enforced on the older parts of the chain. Only in blocks from two weeks after 95% of the hash-power had signaled their intent to enforce (counted over a 2016 block interval after the change start-time).
For prior soft-forks, like strictder, there are many historical violations before where it was enforced. It does not make the chain invalid, only violations after the point where the new rule's enforcement begins would do so.
For prior soft-forks, like strictder, there are many historical violations before where it was enforced. It does not make the chain invalid, only violations after the point where the new rule's enforcement begins would do so.
Good, this is the first if...then added to fix a specific logic flaw, and this will not be the last of them, keep adding if...then until all the code base become an ugly mess and you still might have missed some scenario
You really don't need all these wasted efforts of patch making and testing if you just do a hard fork