[3.12] gh-106396: Special-case empty format spec to gen empty JoinedStr node (GH-106401) - #106416

[3.12] gh-106396: Special-case empty format spec to gen empty JoinedStr node (GH-106401)#106416

lysnikolaou merged 1 commit into

python:3.12python/cpython:3.12from

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