WIP 2

api/graphql/models/lazy_identity.go

cache/bug_cache.go

cache/cached.go

cache/subcache.go

cache/with_snapshot.go

entities/bug/bug_actions.go

entities/bug/comment.go

entities/bug/op_add_comment.go

entities/bug/op_add_comment_test.go

entities/bug/op_create.go

entities/bug/op_create_test.go

entities/bug/op_edit_comment.go

entities/bug/op_edit_comment_test.go

entities/bug/op_label_change.go

entities/bug/op_label_change_test.go

entities/bug/op_set_metadata.go

entities/bug/op_set_status.go

entities/bug/op_set_status_test.go

entities/bug/op_set_title.go

entities/bug/op_set_title_test.go