Explicitly allow clobbering tags when fetching from remote.
Explicitly allow clobbering tags when fetching from remote.

Bug: b/139860049
Change-Id: I3c4134eda7e9e75c9d72b233e269bcc0e624d1e8
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/234632
Reviewed-by: Mike Frysinger <8f3f75c74bd5184edcfa6534cab3c13a00a2f794@google.com>
Tested-by: Xin Li <93465216fd46a440eb04b27d6e009aced8b0c153@google.com>

lewixliu/git-repo,mer-tools/git-repo,couchbasedeps/git-repo,lipro-yocto/git-repo,TheQtCompany/git-repo,aosp-mirror/tools_repo,codetutil/git-repo,lipro-yocto/git-repo,gabbayo/git-repo,GerritCodeReview/git-repo,aosp-mirror/tools_repo,mer-tools/git-repo,TheQtCompany/git-repo,couchbasedeps/git-repo,GerritCodeReview/git-repo,gabbayo/git-repo,codetutil/git-repo,lewixliu/git-repo