Automatic merge of T1.5.1-913-g91804456c and 16 pull requests

- Pull request #570 at 3539862: Experimental glTF 2.0 support with PBR lighting
- Pull request #839 at d00beb9: First phase of https://blueprints.launchpad.net/or/+spec/additional-cruise-control-parameters
- Pull request #876 at f92de76: docs: add source for documents previously on website to source Documentation folder
- Pull request #882 at 1a5693d: Blueprint/train car operations UI window
- Pull request #886 at 6c0785b: Scene viewer extension to TrackViewer
- Pull request #892 at 1f5ba4c: Signal Function OPP_SIG_ID_TRAINPATH
- Pull request #896 at 5866028: First implementation of https://blueprints.launchpad.net/or/+spec/specific-sounds-for-ai-trains
- Pull request #903 at 29f3d1a: Downloading route content (Github, zip)
- Pull request #910 at 97d4569: Allow building code using .NET 6 (Windows)
- Pull request #911 at 6834af0: docs: Add refactoring as a special type of PR
- Pull request #912 at f7b85e4: New Triple Valve Features Vol. 2
- Pull request #919 at 1a376fa: Added mouse wheel support for controls which can be moved by pressing t…
- Pull request #920 at a94e403: Update RailDriver in Manual
- Pull request #923 at e0f3c55: Add curve squeal to route
- Pull request #924 at 6c2c3cd: Default Asset Improvements
- Pull request #925 at e3b1688: Fix brakeshoe force bug

Author: openrails-bot

Source/Menu/DownloadContentForm.cs

@@ -775,7 +775,7 @@ void StartButton_Click(object sender, EventArgs e)
                     mainForm.comboBoxStartAt.SelectedIndex = determineSelectedIndex(mainForm.comboBoxStartAt, route.Start.StartingAt);
                     mainForm.comboBoxHeadTo.SelectedIndex = determineSelectedIndex(mainForm.comboBoxHeadTo, route.Start.HeadingTo);
 
-                    mainForm.comboBoxStartTime.SelectedIndex = determineSelectedIndex(mainForm.comboBoxStartTime, route.Start.Time);
+                    mainForm.comboBoxStartTime.Text = route.Start.Time;
                     mainForm.comboBoxStartSeason.SelectedIndex = determineSelectedIndex(mainForm.comboBoxStartSeason, route.Start.Season);
                     mainForm.comboBoxStartWeather.SelectedIndex = determineSelectedIndex(mainForm.comboBoxStartWeather, route.Start.Weather);
                 }
@@ -791,6 +791,9 @@ void StartButton_Click(object sender, EventArgs e)
                 // close this dialog
                 DialogResult = DialogResult.OK;
 
+                setCursorToDefaultCursor();
+                ClosingBlocked = false;
+
                 return;
             }
 
@@ -880,7 +883,23 @@ private int determineSelectedIndex(ComboBox comboBox, string compareWith)
             }
             else
             {
-                throw new StartNotFound(Catalog.GetStringFmt(compareWith));
+                if (classOfItem == "Route")
+                {
+                    // if a route is not found and amount of routes is 1
+                    // then default to this one and only route
+                    if (comboBox.Items.Count == 1)
+                    {
+                        index = 0;
+                    }
+                    else
+                    {
+                        throw new StartNotFound(Catalog.GetStringFmt(compareWith));
+                    }
+                }
+                else
+                {
+                    throw new StartNotFound(Catalog.GetStringFmt(compareWith));
+                }
             }
 
             return index;