Bug summary

If I set plt.rcParams["axes.formatter.use_locale"] = True, the decimal separator is displayed in curly brackets in v3.8.0. This was not the case in 3.7.3. But only when the decimal separator is a comma.

Code for reproduction

import matplotlib.pyplot as plt
import locale

locale.setlocale(locale.LC_NUMERIC, 'de')

plt.rcParams["axes.formatter.use_locale"] = True
fig = plt.Figure()
plt.plot([0, 1, 2, 3, 4], [0.1, 0.13, 0.09, 0.105, 0.13])

Actual outcome

Expected outcome

As described in the bug description, in v 3.7.3 this simply led to a comma as decimal separator which is not displayed in curly brackets

Additional information

No response

Operating system

Windows 11

Matplotlib Version

3.8.0

Matplotlib Backend

Qt5Agg

Python version

3.10.11

Jupyter version

No response

Installation

pip