$ git clone -n https://src.fedoraproject.org/rpms/act.git /var/lib/mock/f41-build-side-1-2631390-25705/root/chroot_tmpdir/scmroot/act
Cloning into '/var/lib/mock/f41-build-side-1-2631390-25705/root/chroot_tmpdir/scmroot/act'...
$ git fetch origin 15fd0b5546e48104ab7eabf5c5dc9a46b7f62c90:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/act
 * [new ref]         15fd0b5546e48104ab7eabf5c5dc9a46b7f62c90 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15fd0b5 convert license to SPDX