Add path filter test with two-deep folder path

This repros #587

Author: AArnott

src/NerdBank.GitVersioning.Tests/VersionOracleTests.cs

@@ -731,6 +731,28 @@ public void GetVersionHeight_IncludeRootExcludeSome()
         Assert.Equal(2, this.GetVersionHeight(relativeDirectory));
     }
 
+    [Fact]
+    public void GetVersion_PathFilterInTwoDeepSubDirAndVersionBump()
+    {
+        this.InitializeSourceControl();
+
+        const string relativeDirectory = "src\\lib";
+        var versionOptions = new VersionOptions
+        {
+            Version = new SemanticVersion("1.1"),
+            PathFilters = new FilterPath[]
+            {
+                new FilterPath(".", relativeDirectory),
+            },
+        };
+        this.WriteVersionFile(versionOptions, relativeDirectory);
+        Assert.Equal(1, this.GetVersionHeight(relativeDirectory));
+
+        versionOptions.Version = new SemanticVersion("1.2");
+        this.WriteVersionFile(versionOptions, relativeDirectory);
+        Assert.Equal(1, this.GetVersionHeight(relativeDirectory));
+    }
+
     [Fact]
     public void GetVersionHeight_ProjectDirectoryDifferentToVersionJsonDirectory()
     {