[backport 2.3.x] BUG (string dtype): let fillna with invalid value upcast to object dtype (#60296)

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Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more

https://pandas.pydata.org

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[backport 2.3.x] BUG (string dtype): let fillna with invalid value upcast to object dtype (#60296) #60316

Closed jorisvandenbossche closed 1 week ago

jorisvandenbossche commented 1 week ago

(cherry picked from commit 34c39e9078ea8af12871a92bdcea2058553c9869)

Backport of https://github.com/pandas-dev/pandas/pull/60296