libgit2sharp unable to push tag with tagger and date?

Question

We are trying to push annotated tags to remote using libgit2 but for some reason we are loosing information on the tag somewhere in the process.

Step 1: create apply a new tag

// Left out username and email address for obvious reasons :)
var createdTag = _repository.ApplyTag(tag, new Signature("***", "***", DateTimeOffset.Now), tagMessage);

Verify this works through commandline:

C:\Users\bpr\AppData\Local\Temp\TempTestFolder(DocumentDefinition_CardType1_Development -> origin)                           
λ git show DocumentDefinition_CardType1_1.0.4                                                                                
tag DocumentDefinition_CardType1_1.0.4                                                                                       
Tagger: *** <***@***>                                                                                   
Date:   Thu Oct 19 16:06:47 2023 +0200                                                                                       
                                                                                                                             
some tag description                                                                                                                          
                                                                                                                             
commit 517791ef219bc74724f7b3fea041923517be4c0c (HEAD -> DocumentDefinition_CardType1_Development, tag: DocumentDefinition_CardType1_1.0.4, origin/DocumentDefinition_CardType1_Development)                                                                                       
Author: *** <***@***>                                                                                   
Date:   Thu Oct 19 13:40:44 2023 +0200                                                                                       
                                                                                                                             
    test3                                                                                                                    
                                                                                                                             
diff --git a/test3.txt b/test3.txt                                                                                           
new file mode 100644                                                                                                         
index 0000000..df6b0d2                                                                                                       
--- /dev/null                                                                                                                
+++ b/test3.txt                                                                                                              
@@ -0,0 +1 @@                                                                                                                
+test3                                                                                                                       
                                                                                                                             

Then, the local tag will be pushed to origin

var remote = _repository.Network.Remotes[Origin];
var credentials = _gitCredentialsResolver();

_repository.Network.Push(
    remote, 
    createdTag.Target.Sha,
    createdTag.CanonicalName,
    new PushOptions
    {
        CredentialsProvider = (_, _, _) => new UsernamePasswordCredentials
        {
            Username = credentials.UserName, Password = credentials.Password.ConvertToPlainText()
        }
    });

Since we are testing our functionality with our existing git repo in bitbucket, we can now see that bitbucket doesn't accept this tag as an annotated tag but it became a light weight tag for some reason.

Here, the tag "blabla" was created from the bitbucket UI, and is shown as an annotated tag, with a tagger, and a date. All other tags, are created through libgit2sharp, WITH a tagger and WITH a date, but still show as light weight tags. Why?

When I clone this repository and show the tag there, I can also see that the information of tagger and date no longer is present. So it got lost, somewhere, but I can't figure out where, or why.

Hoping somebody from the libgit2sharp team, or anybody who might know what is going on here, can shed some light on this.

Answer 1

We found the culprit...

_repository.Network.Push(
    remote, 
    createdTag.Target.Sha, // Removing this, solved the problem (no clue why, but at this point I also don't really care anymore:)
    createdTag.CanonicalName,
    new PushOptions
    {
        CredentialsProvider = (_, _, _) => new UsernamePasswordCredentials
        {
            Username = credentials.UserName, Password = credentials.Password.ConvertToPlainText()
        }
    });