The Legislative is not a single person, who weights the options, who accepts the governors revision on behalf of the senate and assembly?
Practically speaking, there are usually committees (may be area specific, or general such as scheduling/introductory) that make the first choice as to how the process will continue. For new york this seems to be the standing committee which decides what will be put to a vote, “ Members of Standing Committees evaluate bills and decide whether to "report" them (send them) to the Senate floor for a final decision by the full membership.”[0].
I would like to know who the governor made an agreement with. The Standing Committees might be a possibility. kwiens named the bills sponsors as a possibility. (https://news.ycombinator.com/item?id=34193369). If the bill was changed shortly before signing it, i would also like to know what the text of the signed bill is. This whole process implied by memorandum #93 seems irregular to me.
Stuff like this should be documented publicly, IMHO.