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Changes between Initial Version and Version 1 of Ticket #2107, comment 4

initial	v1
2	2	> I think you're misinterpreting the thesis. It says not to put a given share on the same server if it already exists there; not that upload or repair can't create shares that are duplicates of existing shares but on different servers that already have (other) shares. The latter is clearly necessary to achieve happiness. (Proof: suppose that one server has all shnums, the remaining servers have shnum 0, and shares.happy > 2.)
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4		Good point. Here are some possible rule:
	4	Good point. Here are some possible rules:
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6	6	• [bad rule]: Don't put a share on a server if that server already has a different share. Sometimes, as Daira points out, we would have to break that rule in order to achieve Servers-of-Happiness.