[Bug]: Recent test_determinism_check flakiness #30360
Description
Bug summary
I have taken the results from https://github.com/matplotlib/matplotlib/actions/runs/16533707714/job/46764218849?pr=30334, extracted the diff, then put all the common and - lines in one file and the common and + files in another, and wrote them to separate files.
This produces a much simpler diff with just the lines that changed instead of a whole byte string diff:
--- a.eps 2025-07-25 20:29:08.047303419 -0400
+++ b.eps 2025-07-25 20:30:15.458646631 -0400
@@ -10771,27 +10771,7 @@
0 setlinecap
0 0 1 setrgbcolor
gsave
-/c6 {
-279.447273 58.176 m
-387.665455 58.176 l
-387.665455 138.816 l
-279.447273 138.816 l
-cl
-333.556364 78.336 m
-333.556364 78.336 326.381414 78.336 319.499366 80.460185 c
-314.425911 84.240727 309.352456 88.02127 306.501818 93.149506 c
-306.501818 98.496 306.501818 103.842494 309.352456 108.97073 c
-314.425911 112.751273 319.499366 116.531815 326.381414 118.656 c
-333.556364 118.656 340.731313 118.656 347.613361 116.531815 c
-352.686816 112.751273 357.760272 108.97073 360.610909 103.842494 c
-360.610909 98.496 360.610909 93.149506 357.760272 88.02127 c
-352.686816 84.240727 347.613361 80.460185 340.731313 78.336 c
-cl
-
-clip
-newpath
-} bind def
-c6
+c5
333.556364 150.912 m
315.970909 121.192794 l
272.638562 124.704 l
Code for reproduction
pytestActual outcome
Expected outcome
Additional information
No response
Operating system
No response
Matplotlib Version
tip of #30334
Matplotlib Backend
No response
Python version
No response
Jupyter version
No response
Installation
None