MM-62745: [Shared Channels] Fix duplicate mentioning - local user with the same username as someone on the remote server - Part2 (#32101) (#33414)

Automatic Merge

server/channels/app/platform/shared_channel_service_iface.go

@@ -5,6 +5,7 @@ package platform
 
 import (
 	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/request"
 	"github.com/mattermost/mattermost/server/v8/platform/services/sharedchannel"
 )
 
@@ -24,6 +25,7 @@ type SharedChannelServiceIFace interface {
 	CheckChannelIsShared(channelID string) error
 	CheckCanInviteToSharedChannel(channelId string) error
 	HandleMembershipChange(channelID, userID string, isAdd bool, remoteID string)
+	TransformMentionsOnReceiveForTesting(ctx request.CTX, post *model.Post, targetChannel *model.Channel, rc *model.RemoteCluster, mentionTransforms map[string]string)
 }
 
 type MockOptionSharedChannelService func(service *mockSharedChannelService)
@@ -82,3 +84,7 @@ func (mrcs *mockSharedChannelService) NumInvitations() int {
 func (mrcs *mockSharedChannelService) HandleMembershipChange(channelID, userID string, isAdd bool, remoteID string) {
 	// This is a mock implementation - it doesn't need to do anything
 }
+
+func (mrcs *mockSharedChannelService) TransformMentionsOnReceiveForTesting(ctx request.CTX, post *model.Post, targetChannel *model.Channel, rc *model.RemoteCluster, mentionTransforms map[string]string) {
+	// This is a mock implementation - it doesn't need to do anything
+}