emoji: Switch to `user_profile.realm` for cross-realm reactions.
emoji: Switch to `user_profile.realm` for cross-realm reactions.

A temporary fix to enable cross-realm emoji reactions till `Message.realm`
is denormalized.

Fixes #15866.
brainwane/zulip,brainwane/zulip,rht/zulip,kou/zulip,hackerkid/zulip,rht/zulip,brainwane/zulip,rht/zulip,rht/zulip,showell/zulip,hackerkid/zulip,showell/zulip,punchagan/zulip,punchagan/zulip,showell/zulip,zulip/zulip,kou/zulip,zulip/zulip,rht/zulip,showell/zulip,andersk/zulip,zulip/zulip,punchagan/zulip,andersk/zulip,andersk/zulip,showell/zulip,zulip/zulip,brainwane/zulip,eeshangarg/zulip,zulip/zulip,brainwane/zulip,andersk/zulip,andersk/zulip,hackerkid/zulip,eeshangarg/zulip,eeshangarg/zulip,kou/zulip,punchagan/zulip,rht/zulip,hackerkid/zulip,showell/zulip,kou/zulip,punchagan/zulip,hackerkid/zulip,eeshangarg/zulip,punchagan/zulip,brainwane/zulip,andersk/zulip,zulip/zulip,kou/zulip,hackerkid/zulip,eeshangarg/zulip,punchagan/zulip,showell/zulip,kou/zulip,kou/zulip,zulip/zulip,hackerkid/zulip,eeshangarg/zulip,eeshangarg/zulip,rht/zulip,brainwane/zulip,andersk/zulip