Fix folder creation tracker panic when copying large folders with --overwrite=false/ifsourcenewer#3395

Copilot wants to merge 2 commits intomainAzure/azure-storage-azcopy:mainfrom

copilot/fix-azcopy-error-large-foldersAzure/azure-storage-azcopy:copilot/fix-azcopy-error-large-foldersCopy head branch name to clipboard