Fixes #1468 user search case

CHANGES.md

@@ -19,6 +19,7 @@ Bugfix 🐛:
  - User could not redact message that they have sent (#1543)
  - Use vendor prefix for non merged MSC (#1537)
  - Compress images before sending (#1333)
+ - Searching by displayname is case sensitive (#1468)
 
 Translations 🗣:
  -

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/user/UserDataSource.kt

@@ -33,6 +33,7 @@ import im.vector.matrix.android.internal.database.model.UserEntityFields
 import im.vector.matrix.android.internal.database.query.where
 import im.vector.matrix.android.internal.di.SessionDatabase
 import im.vector.matrix.android.internal.util.fetchCopied
+import io.realm.Case
 import javax.inject.Inject
 
 internal class UserDataSource @Inject constructor(@SessionDatabase private val monarchy: Monarchy) {
@@ -91,7 +92,7 @@ internal class UserDataSource @Inject constructor(@SessionDatabase private val m
             } else {
                 query
                         .beginGroup()
-                        .contains(UserEntityFields.DISPLAY_NAME, filter)
+                        .contains(UserEntityFields.DISPLAY_NAME, filter, Case.INSENSITIVE)
                         .or()
                         .contains(UserEntityFields.USER_ID, filter)
                         .endGroup()