From 7485d4aa917f807e7db5019d79ea762b7ed8981d Mon Sep 17 00:00:00 2001
From: Ginger <ginger@gingershaped.computer>
Date: Mon, 9 Feb 2026 16:25:26 -0500
Subject: [PATCH] fix: Properly set stripped state for local invites

---
 changelog.d/1249.bugfix.md              | 1 +
 src/service/rooms/state_cache/mod.rs    | 2 ++
 src/service/rooms/state_cache/update.rs | 6 ++----
 3 files changed, 5 insertions(+), 4 deletions(-)
 create mode 100644 changelog.d/1249.bugfix.md

diff --git a/changelog.d/1249.bugfix.md b/changelog.d/1249.bugfix.md
new file mode 100644
index 00000000..73e0dcca
--- /dev/null
+++ b/changelog.d/1249.bugfix.md
@@ -0,0 +1 @@
+Fixed invites sent to other users in the same homeserver not being properly sent down sync.
diff --git a/src/service/rooms/state_cache/mod.rs b/src/service/rooms/state_cache/mod.rs
index b87dfbe9..1a7a8a47 100644
--- a/src/service/rooms/state_cache/mod.rs
+++ b/src/service/rooms/state_cache/mod.rs
@@ -30,6 +30,7 @@ struct Services {
 	config: Dep<config::Service>,
 	globals: Dep<globals::Service>,
 	metadata: Dep<rooms::metadata::Service>,
+	state: Dep<rooms::state::Service>,
 	state_accessor: Dep<rooms::state_accessor::Service>,
 	users: Dep<users::Service>,
 }
@@ -64,6 +65,7 @@ impl crate::Service for Service {
 				config: args.depend::<config::Service>("config"),
 				globals: args.depend::<globals::Service>("globals"),
 				metadata: args.depend::<rooms::metadata::Service>("rooms::metadata"),
+				state: args.depend::<rooms::state::Service>("rooms::state"),
 				state_accessor: args
 					.depend::<rooms::state_accessor::Service>("rooms::state_accessor"),
 				users: args.depend::<users::Service>("users"),
diff --git a/src/service/rooms/state_cache/update.rs b/src/service/rooms/state_cache/update.rs
index f08ff4a0..bf305dbe 100644
--- a/src/service/rooms/state_cache/update.rs
+++ b/src/service/rooms/state_cache/update.rs
@@ -118,10 +118,8 @@ pub async fn update_membership(
 			self.mark_as_joined(user_id, room_id);
 		},
 		| MembershipState::Invite => {
-			// TODO: make sure that passing None for `last_state` is correct behavior.
-			// the call from `append_pdu` used to use `services.state.summary_stripped`
-			// to fill that parameter.
-			self.mark_as_invited(user_id, room_id, pdu.sender(), None, None)
+			let last_state = self.services.state.summary_stripped(pdu, room_id).await;
+			self.mark_as_invited(user_id, room_id, pdu.sender(), Some(last_state), None)
 				.await?;
 		},
 		| MembershipState::Leave | MembershipState::Ban => {