Is this normal? I see the same cloning from the 4.3.0 tag.

$ git --version
git version 2.26.2

git clone <https://github.com/osquery/osquery>
cd osquery
git submodule update --init --recursive

$ git status
On branch master
Your branch is up to date with 'origin/master'.
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
  (commit or discard the untracked or modified content in submodules)
	modified:   libraries/cmake/source/libiptables/src (modified content)

no changes added to commit (use "git add" and/or "git commit -a")

$ git diff
diff --git a/libraries/cmake/source/libiptables/src b/libraries/cmake/source/libiptables/src
--- a/libraries/cmake/source/libiptables/src
+++ b/libraries/cmake/source/libiptables/src
@@ -1 +1 @@
-Subproject commit 1447b15100fe73810237809c1d4ade3c861b6d96
+Subproject commit 1447b15100fe73810237809c1d4ade3c861b6d96-dirty