Hello Git,
First discovered here: https://github.com/gitextensions/gitextensions/issues/11783
Another discussion: https://stackoverflow.com/questions/58403616/does-git-submodule-update-recursive-override-fetchrecursesubmodules
Manual: https://git-scm.com/docs/gitmodules#Documentation/gitmodules.txt-submoduleltnamegtfetchRecurseSubmodules
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If use a recursive submodule, for example:
A->B->A->...
And call submodules Update on A, then the Update does ignore the flag and keeps fetch recursively with the error at the end: