Add unit tests in SupportBranchScenarios

Author: enriqueraso

Diff for: src/GitVersion.Core.Tests/IntegrationTests/SupportBranchScenarios.cs

@@ -71,4 +71,31 @@ public void WhenSupportIsBranchedAndTaggedFromAnotherSupportEnsureNewMinorIsUsed
 
         fixture.AssertFullSemver("1.3.1+2");
     }
+
+    [Test]
+    public void WhenSupportIsBranchedFromMainWithSpecificTag()
+    {
+        using var fixture = new EmptyRepositoryFixture();
+        fixture.Repository.MakeACommit();
+        fixture.AssertFullSemver("0.1.0+0");
+
+        fixture.Repository.ApplyTag("1.4.0-rc");
+        fixture.Repository.MakeACommit();
+        fixture.Repository.CreateBranch("support/1");
+        Commands.Checkout(fixture.Repository, "support/1");
+        fixture.AssertFullSemver("1.4.0+1");
+    }
+
+    [Test]
+    public void WhenSupportIsBranchedFromMainWithSpecificTagOnCommit()
+    {
+        using var fixture = new EmptyRepositoryFixture();
+        fixture.Repository.MakeACommit();
+        fixture.AssertFullSemver("0.1.0+0");
+
+        fixture.Repository.ApplyTag("1.4.0-rc");
+        fixture.Repository.CreateBranch("support/1");
+        Commands.Checkout(fixture.Repository, "support/1");
+        fixture.AssertFullSemver("1.4.0");
+    }
 }

Diff for: src/GitVersion.Core/VersionCalculation/NextVersionCalculator.cs

@@ -97,6 +97,12 @@ public NextVersion FindVersion()
             {
                 // set the commit count on the tagged ver
                 taggedSemanticVersion.BuildMetaData.CommitsSinceVersionSource = semver.BuildMetaData?.CommitsSinceVersionSource;
+
+                // set the updated prerelease tag when it doesn't match with prerelease tag defined in branch configuration
+                if (preReleaseTagDoesNotMatchConfiguration)
+                {
+                    taggedSemanticVersion.PreReleaseTag = semver.PreReleaseTag;
+                }
             }
         }