Some related work includes operational transformation (https://en.wikipedia.org/wiki/Operational_transformation https://en.wikipedia.org/wiki/Operational_transf

Some related work includes operational transformation (https://en.wikipedia.org/wiki/Operational_transformation https://en.wikipedia.org/wiki/Operational_transformation), and Darcs' patch theory (https://en.wikibooks.org/wiki/Understanding_Darcs/Patch_theory https://en.wikibooks.org/wiki/Understanding_Darcs/Patch_theo...).