$ git clone -n https://src.fedoraproject.org/rpms/R-getPass.git /var/lib/mock/f42-build-side-1-3500320-45970/root/chroot_tmpdir/scmroot/R-getPass
Cloning into '/var/lib/mock/f42-build-side-1-3500320-45970/root/chroot_tmpdir/scmroot/R-getPass'...
$ git fetch origin 32f9e351942a58b40d9f87809dd7865ef51f8508:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-getPass
 * [new ref]         32f9e351942a58b40d9f87809dd7865ef51f8508 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32f9e35 R-maint-sig mass rebuild