Description:
I have this formula in a writer document:
A = left lbrace stack { alignl 1 # 2 − 3 # alignl 3 } right none

If a register the document in docx format, then reopen, "alignl" are lost, and the stack displays centered lines.

I expect that the alignment format is preserved.


Steps to Reproduce:
1. Create a witeer document
2. Insert a formula with this content "A = left lbrace stack { alignl 1 # 2 − 3 # alignl 3 } right none"
3. Save the document in ODT and in DOCX formats

Actual Results:
4. Reopen the documents: ODT is OK, but docx lost alignments.

Expected Results:
Alignments are preserved


Reproducible: Always


User Profile Reset: No

Additional Info:
Version: 25.2.5.2 (X86_64) / LibreOffice Community
Build ID: 03d19516eb2e1dd5d4ccd751a0d6f35f35e08022
CPU threads: 4; OS: Linux 6.6; UI render: default; VCL: kf5 (cairo+xcb)
Locale: fr-FR (fr_FR.UTF-8); UI: fr-FR
Calc: threaded