fix(base): Fix a panic when we encounter a power level at Int::Min

Author: poljar

crates/matrix-sdk-base/CHANGELOG.md

@@ -6,6 +6,11 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased] - ReleaseDate
 
+### Bug Fixes
+
+- Fix a panic in the `RoomMember::normalized_power_level` method.
+  ([#5635](https://github.com/matrix-org/matrix-rust-sdk/pull/5635))
+
 ## [0.14.0] - 2025-09-04
 
 ### Features

crates/matrix-sdk-base/src/room/members.rs

@@ -471,7 +471,9 @@ impl RoomMemberships {
 pub fn normalize_power_level(power_level: Int, max_power_level: i64) -> Int {
     let mut power_level = i64::from(power_level);
     power_level = (power_level * 100) / max_power_level;
-    power_level.try_into().expect("normalized power level should fit in Int")
+
+    Int::try_from(power_level.clamp(0, 100))
+        .expect("We clamped the normalized power level so they must fit into the Int")
 }
 
 #[cfg(test)]