$ git clone -n https://src.fedoraproject.org/rpms/os-prober.git /var/lib/mock/f41-build-side-1-2650185-27567/root/chroot_tmpdir/scmroot/os-prober
Cloning into '/var/lib/mock/f41-build-side-1-2650185-27567/root/chroot_tmpdir/scmroot/os-prober'...
$ git fetch origin 3493b1e24a1092ca39136a686ed6ae3729eac01d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/os-prober
 * [new ref]         3493b1e24a1092ca39136a686ed6ae3729eac01d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3493b1e include kernel paremeteres from grub file and fix mapdevfs function