Allow issuance to not specify rune, and receive shortest available rune? about runestone HOT 2 CLOSED

Should it be the shortest available rune? If issuance didn't specify a rune, its likely that they aren't interested in the rune symbol to begin with, so perhaps giving them the longest available rune makes more sense.

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Currently, if you try to fool someone into accepting a mapping bad mapping from ID0 to RUNE, a full index can construct a fraud proof which shows that there was an earlier etching with ID1 which claimed RUNE, and thus ID0 can't have that rune. This does not prove that ID1 maps to RUNE, because there could have been an even earlier etching, but it does help.

With this feature, RUNE could have been claimed by an etching that did not specify the rune, and received RUNE because it was the shortest/longest available at the time.

So I don't think this is a good idea. Plus the implementation winds up being pretty complex.

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