Change Details

Steps tracked here: [x] Create a ChangeOp class: https://gerrit.wikimedia.org/r/339223 [x] Create a ChangeOpDeserializer class: https://gerrit.wikimedia.org/r/339787 [] Plug ChangeOpDeserializer into LexemeChangeOpDeserializer

Steps tracked here: [x] Create a ChangeOp class: https://gerrit.wikimedia.org/r/339223 [x] Create a ChangeOpDeserializer class: https://gerrit.wikimedia.org/r/339787 [x] Plug ChangeOpDeserializer into LexemeChangeOpDeserializer

Steps tracked here: [x] Create a ChangeOp class: https://gerrit.wikimedia.org/r/339223 [x] Create a ChangeOpDeserializer class: https://gerrit.wikimedia.org/r/339787 [x] Plug ChangeOpDeserializer into LexemeChangeOpDeserializer