I updated a HTML file and included a data URL (base64 of an image) that resulted in a text line with about 10,000 characters. Nothing wrong with this, and browsers are OK with it, but Sourcetree crashes when this update is present. Maybe a problem with the diff window or some other processing.
The length of a line, no matter how big, should not crash Sourcetree. Maybe put ellipses into the display if the text is too long for the window.
Reproducible: If I open ST before inserting the long line, ST is fine. Paste the long line into the file, then select the diff window in ST and it immediately crashes. After some experiments, I discovered that a line of 9,581 characters was OK, but anything above that crashes ST. So there's an arbitrary limit being exceeded somewhere.
