Compression monkeypatch is not always being loaded

[dralley]

Describe the bug

For whatever reason, the monkeypatch added in #3884 is not always loaded. I'm not 100% sure if it has to do with the order in which the files are loaded into the interpreter or some other detail, but we need to make it reliable.

To Reproduce

This patch

diff --git a/pulpcore/app/monkeypatch.py b/pulpcore/app/monkeypatch.py
index 38852f6a7..94ec14fb6 100644
--- a/pulpcore/app/monkeypatch.py
+++ b/pulpcore/app/monkeypatch.py
@@ -49,6 +49,8 @@ if sys.version_info.major == 3 and sys.version_info.minor < 12:
         _Stream is intended to be used only internally.
         """
 
+        is_patched = True
+
         def _init_write_gz(self):
             """Initialize for writing with gzip compression."""
             self.cmp = self.zlib.compressobj(
diff --git a/pulpcore/app/tasks/export.py b/pulpcore/app/tasks/export.py
index 3259187d9..c013d0283 100644
--- a/pulpcore/app/tasks/export.py
+++ b/pulpcore/app/tasks/export.py
@@ -191,6 +191,9 @@ def fs_publication_export(exporter_pk, publication_pk, start_repo_version_pk=Non
         exporter_pk (str): FilesystemExporter pk
         publication_pk (str): Publication pk
     """
+    if not hasattr(tarfile._Stream, "is_patched"):
+        raise RuntimeError("tarfile module was not patched properly")
+
     exporter = Exporter.objects.get(pk=exporter_pk).cast()
     publication = Publication.objects.get(pk=publication_pk).cast()
 
@@ -235,6 +238,9 @@ def fs_repo_version_export(exporter_pk, repo_version_pk, start_repo_version_pk=N
         exporter_pk (str): FilesystemExporter pk
         repo_version_pk (str): RepositoryVersion pk
     """
+    if not hasattr(tarfile._Stream, "is_patched"):
+        raise RuntimeError("tarfile module was not patched properly")
+
     exporter = Exporter.objects.get(pk=exporter_pk).cast()
     repo_version = RepositoryVersion.objects.get(pk=repo_version_pk)
     start_repo_version = None
@@ -387,6 +393,9 @@ def pulp_export(exporter_pk, params):
     the_export.validated_start_versions = serializer.validated_data.get("start_versions", None)
     the_export.validated_chunk_size = serializer.validated_data.get("chunk_size", None)
 
+    if not hasattr(tarfile._Stream, "is_patched"):
+        raise RuntimeError("tarfile module was not patched properly")
+
     try:
         the_export.task = Task.current()
 

Expected behavior
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Additional context
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