Do not attempt to report >100% seek progress. (This could happen if the user starts a seek which results in loading a savestate past the frame previously being seeked.)

src/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs

@@ -351,6 +351,10 @@ namespace BizHawk.Client.EmuHawk
 					{
 						progress = 0;
 					}
+					else if (progress > 100)
+					{
+						progress = 100;
+					}
 
 					_seekBackgroundWorker.ReportProgress((int)progress);
 					System.Threading.Thread.Sleep(1);