Handle max steps for branch changelogs.

Author: SuuperW

src/BizHawk.Client.Common/movie/tasproj/TasBranch.cs

@@ -194,6 +194,7 @@ public void Load(ZipStateLoader bl, ITasMovie movie)
 			{
 				var b = new TasBranch();
 				b.ChangeLog = new TasMovieChangeLog(movie);
+				b.ChangeLog.MaxSteps = movie.ChangeLog.MaxSteps;
 
 				if (!bl.GetLump(nheader, abort: false, tr =>
 				{

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

@@ -26,6 +26,11 @@ public partial class BookmarksBranchesBox : UserControl, IDialogParent
 		private TasBranch _backupBranch;
 		private BranchUndo _branchUndo = BranchUndo.None;
 
+		public void SetBackupMaxSteps(int value)
+		{
+			if (_backupBranch != null) _backupBranch.ChangeLog.MaxSteps = value;
+		}
+
 		private enum BranchUndo
 		{
 			Load,

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

@@ -703,10 +703,22 @@ private void SetMaxUndoLevelsMenuItem_Click(object sender, EventArgs e)
 
 				if (val > 0)
 				{
-					Settings.MaxUndoSteps = CurrentTasMovie.ChangeLog.MaxSteps = val;
+					UpdateChangeLogMaxSteps(val);
 				}
 			}
 		}
+
+		public void UpdateChangeLogMaxSteps(int value)
+		{
+			Settings.MaxUndoSteps = value;
+			CurrentTasMovie.ChangeLog.MaxSteps = value;
+			BookMarkControl.SetBackupMaxSteps(value);
+			foreach (TasBranch branch in CurrentTasMovie.Branches)
+			{
+				branch.ChangeLog.MaxSteps = value;
+			}
+		}
+
 		private void SetRewindStepFastMenuItem_Click(object sender, EventArgs e)
 		{
 			using var prompt = new InputPrompt

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

@@ -152,7 +152,7 @@ private void ClearHistoryToHereMenuItem_Click(object sender, EventArgs e)
 
 		private void MaxStepsNum_ValueChanged(object sender, EventArgs e)
 		{
-			_tastudio.Settings.MaxUndoSteps = Log.MaxSteps = (int)MaxStepsNum.Value;
+			_tastudio.UpdateChangeLogMaxSteps((int)MaxStepsNum.Value);
 		}
 	}
 }