gh-137921: Mark map/accumulate iterators exhausted when the user callback raises…#137936

PrathmeshAdsod wants to merge 1 commit intopython:mainpython/cpython:mainfrom

PrathmeshAdsod:fix/map-accumulate-create-broken-iterator-#137921PrathmeshAdsod/cpython:fix/map-accumulate-create-broken-iterator-#137921Copy head branch name to clipboard