import: Make sure the internal realm is created before import.
import: Make sure the internal realm is created before import.

This is critical for importing the very first realm into an empty
server, since in 27b15a9722144b779ffe597b189925f21d53612d, we changed
the model to create the internal realm when the first real realm would
be created, but neglected the data import code path.

andersk/zulip,punchagan/zulip,hackerkid/zulip,shubhamdhama/zulip,eeshangarg/zulip,andersk/zulip,timabbott/zulip,hackerkid/zulip,hackerkid/zulip,timabbott/zulip,shubhamdhama/zulip,kou/zulip,andersk/zulip,showell/zulip,showell/zulip,shubhamdhama/zulip,punchagan/zulip,rht/zulip,rht/zulip,rht/zulip,rht/zulip,synicalsyntax/zulip,zulip/zulip,eeshangarg/zulip,andersk/zulip,showell/zulip,rht/zulip,punchagan/zulip,shubhamdhama/zulip,synicalsyntax/zulip,hackerkid/zulip,eeshangarg/zulip,shubhamdhama/zulip,brainwane/zulip,kou/zulip,rht/zulip,eeshangarg/zulip,zulip/zulip,synicalsyntax/zulip,showell/zulip,zulip/zulip,zulip/zulip,kou/zulip,hackerkid/zulip,timabbott/zulip,shubhamdhama/zulip,andersk/zulip,kou/zulip,brainwane/zulip,zulip/zulip,hackerkid/zulip,timabbott/zulip,punchagan/zulip,brainwane/zulip,timabbott/zulip,punchagan/zulip,synicalsyntax/zulip,eeshangarg/zulip,timabbott/zulip,kou/zulip,hackerkid/zulip,showell/zulip,zulip/zulip,eeshangarg/zulip,brainwane/zulip,brainwane/zulip,synicalsyntax/zulip,punchagan/zulip,andersk/zulip,andersk/zulip,shubhamdhama/zulip,synicalsyntax/zulip,synicalsyntax/zulip,eeshangarg/zulip,brainwane/zulip,zulip/zulip,showell/zulip,showell/zulip,kou/zulip,punchagan/zulip,rht/zulip,timabbott/zulip,brainwane/zulip,kou/zulip