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Description of problem:
The recent update of libtalloc to libtalloc-2.2.0-5.el8 breaks Samba's Python bindings. The samba Python package fails to import because the pytalloc_reference_ex symbol is missing.

The bug affects IPA's AD trust feature and prevents IPA to establish a trust with Active Directory.

Version-Release number of selected component (if applicable):
libtalloc-2.2.0-5.el8.x86_64
python3-samba-4.10.4-101.el8_1.x86_64
python3-talloc-2.2.0-5.el8.x86_64

How reproducible:
always

Steps to Reproduce:
# python3
Python 3.6.8 (default, Oct 29 2019, 14:26:23) 
[GCC 8.3.1 20190507 (Red Hat 8.3.1-4)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import samba

Actual results:
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python3.6/site-packages/samba/__init__.py", line 29, in <module>
    import samba.param
ImportError: /usr/lib64/python3.6/site-packages/samba/param.cpython-36m-x86_64-linux-gnu.so: undefined symbol: pytalloc_reference_ex, version PYTALLOC_UTIL.PY3_2.1.5

Expected results:
No error

Additional info:

libtalloc, libtevent, libtdb, libldb, samba and sssd need to use side-tag gating. We set up rhel-8.2.0-samba-and-sssd-stack-gate as a tag for this. However there is a bug in samba packaging which needs to be fixed now (found by that side-tag gaging).

Trying to build new samba package for a new gating run.