$ git clone -n https://src.fedoraproject.org/rpms/grpcurl.git /var/lib/mock/f39-build-1778176-41529/root/chroot_tmpdir/scmroot/grpcurl
Cloning into '/var/lib/mock/f39-build-1778176-41529/root/chroot_tmpdir/scmroot/grpcurl'...
$ git fetch origin e88b892d27bd89c89b60bd75610e26588e4c6410:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grpcurl
 * [new ref]         e88b892d27bd89c89b60bd75610e26588e4c6410 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e88b892 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild