openapi_responses: Fix get_messages.
openapi_responses: Fix get_messages.

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