Commit d0fd3ca

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Added safeguards for edge cases

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Lines changed: 3 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1145,6 +1145,8 @@ public class SingleSideTextDiffPresenter : ThemedTextDiffPresenter`
`1145`	`1145`
`1146`	`1146`	`public void ForceSyncScrollOffset()`
`1147`	`1147`	`{`
	`1148`	`+ if (_scrollViewer == null)`
	`1149`	`+ return;`
`1148`	`1150`	`if (DataContext is ViewModels.TwoSideTextDiff diff)`
`1149`	`1151`	`diff.SyncScrollOffset = _scrollViewer?.Offset ?? Vector.Zero;`
`1150`	`1152`	`}`
`@@ -1584,7 +1586,7 @@ static TextDiffView()`
`1584`	`1586`
`1585`	`1587`	`CurrentChangeBlockIdxProperty.Changed.AddClassHandler<TextDiffView>((v, e) =>`
`1586`	`1588`	`{`
`1587`		`- if (v.Editor.Presenter != null)`
	`1589`	`+ if ((int)e.NewValue>=0&&v.Editor.Presenter != null)`
`1588`	`1590`	`{`
`1589`	`1591`	`foreach (var p in v.Editor.Presenter.GetVisualDescendants().OfType<ThemedTextDiffPresenter>())`
`1590`	`1592`	`{`

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