Use specific counter for Imc.

Penumbra/Collections/Cache/ImcCache.cs

@@ -68,6 +68,7 @@ public sealed class ImcCache(MetaFileManager manager, ModCollection collection)
 
     protected override void ApplyModInternal(ImcIdentifier identifier, ImcEntry entry)
     {
+        ++Collection.ImcChangeCounter;
         if (Manager.CharacterUtility.Ready)
             ApplyFile(identifier, entry);
     }
@@ -102,6 +103,7 @@ public sealed class ImcCache(MetaFileManager manager, ModCollection collection)
 
     protected override void RevertModInternal(ImcIdentifier identifier)
     {
+        ++Collection.ImcChangeCounter;
         var path = identifier.GamePath();
         if (!_imcFiles.TryGetValue(path, out var pair))
             return;

Penumbra/Collections/ModCollection.cs

@@ -56,6 +56,8 @@ public partial class ModCollection
     /// </summary>
     public int ChangeCounter { get; private set; }
 
+    public uint ImcChangeCounter { get; set; }
+
     /// <summary> Increment the number of changes in the effective file list. </summary>
     public int IncrementCounter()
         => ++ChangeCounter;

Penumbra/Interop/PathResolving/PathDataHandler.cs

@@ -32,7 +32,7 @@ public static class PathDataHandler
     /// <summary> Create the encoding path for an IMC file. </summary>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static FullPath CreateImc(ByteString path, ModCollection collection)
-        => CreateBase(path, collection);
+        => new($"|{collection.LocalId.Id}_{collection.ImcChangeCounter}_{DiscriminatorString}|{path}");
 
     /// <summary> Create the encoding path for a TMB file. </summary>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]