$ git clone -n https://src.fedoraproject.org/rpms/subscription-manager.git /var/lib/mock/f40-build-752627-116814/root/chroot_tmpdir/scmroot/subscription-manager
Cloning into '/var/lib/mock/f40-build-752627-116814/root/chroot_tmpdir/scmroot/subscription-manager'...
$ git fetch origin 9a98defeb4866cecf6e03fbfff991df2bb25488a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/subscription-manager
 * [new ref]         9a98defeb4866cecf6e03fbfff991df2bb25488a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a98def [packit] 1.29.39 upstream release