vim insert mode on multiline commands

[benohara]

When using vim bindings and in a command such as

bohara at bens-macbook-pro in ~/.dotfiles/zsh (git:masterx)

for i in 1 2 3
for> do
for> echo $i

Switching to vim command mode doesnt reflect in the RPROMPT.

[benohara]

@kohanamin I'll have a look into this