$ git clone -n https://src.fedoraproject.org/rpms/s3fs-fuse.git /var/lib/mock/f39-build-1462233-33315/root/chroot_tmpdir/scmroot/s3fs-fuse
Cloning into '/var/lib/mock/f39-build-1462233-33315/root/chroot_tmpdir/scmroot/s3fs-fuse'...
$ git fetch origin 0996e608d32f56a9cbe2d901694409d4eadf972d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/s3fs-fuse
 * [new ref]         0996e608d32f56a9cbe2d901694409d4eadf972d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0996e60 Update to 1.93 from https://github.com/s3fs-fuse/s3fs-fuse