$ git clone -n https://src.fedoraproject.org/rpms/asymptote.git /var/lib/mock/f39-build-1582052-38102/root/chroot_tmpdir/scmroot/asymptote
Cloning into '/var/lib/mock/f39-build-1582052-38102/root/chroot_tmpdir/scmroot/asymptote'...
$ git fetch origin 1ef969b74cd47503302d8c45be2c38ea7441d7b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/asymptote
 * [new ref]         1ef969b74cd47503302d8c45be2c38ea7441d7b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ef969b update to 2.86, fix license tag