render [Object object] in meta tag

[LubomirIgonda1]

Hi I use this package with redux-form where I as wrapping NumericInput into redux-form Field tag.
And after render I found [Object object] in meta tag

version
react: 16.4.0
redux-form: 7.3.0
react-numeric-input: 2.2.3

used in form

<Field
    name="price"
    component={NumericInput}
    required
    strict
    formatValue={(num) => num + ' €'}
    min={0}
    precision={2}
/>

atom component

const NumericInputField = ({ input: { onChange, value }, formatValue, ...props }) => {
const handleChange = (value) => {
	onChange(value)
}

const val = isNumber(value) ? value : null 
return (
	<div className="input-wrapper">
		<NumericInput	
			{...props}
			value={val}
			onChange={handleChange}
			format={formatValue || undefined}
		/>
	</div>
)
}

and render output

<span
                class="react-numeric-input"
                style="position:relative;display:inline-block"
              >
                <input
                  meta="[object Object]"
                  required=""
                  style="padding-right:3ex;box-sizing:border-box;font-size:inherit;border:1px solid #ccc;border-radius:2px;padding-left:4px;display:block;-webkit-appearance:none;line-height:normal"
                  type="text"
                  value=""
                />
                <b
                  style="position:absolute;right:2px;width:2.26ex;border-color:rgba(0,0,0,.1);border-style:solid;text-align:center;cursor:default;transition:all 0.1s;background:rgba(0,0,0,.1);box-shadow:-1px -1px 3px rgba(0,0,0,.1) inset,1px 1px 3px rgba(255,255,255,.7) inset;top:2px;bottom:50%;border-radius:2px 2px 0 0;border-width:1px 1px 0 1px"
                >
                  <i
                    style="position:absolute;top:50%;left:50%;width:0;height:0;border-width:0 0.6ex 0.6ex 0.6ex;border-color:transparent transparent rgba(0, 0, 0, 0.7);border-style:solid;margin:-0.3ex 0 0 -0.56ex"
                  />
                </b>
                <b
                  style="position:absolute;right:2px;width:2.26ex;border-color:rgba(0,0,0,.1);border-style:solid;text-align:center;cursor:default;transition:all 0.1s;background:rgba(0,0,0,.1);box-shadow:-1px -1px 3px rgba(0,0,0,.1) inset,1px 1px 3px rgba(255,255,255,.7) inset;top:50%;bottom:2px;border-radius:0 0 2px 2px;border-width:0 1px 1px 1px"
                >
                  <i
                    style="position:absolute;top:50%;left:50%;width:0;height:0;border-width:0.6ex 0.6ex 0 0.6ex;border-color:rgba(0, 0, 0, 0.7) transparent transparent;border-style:solid;margin:-0.3ex 0 0 -0.56ex"
                  />
                </b>
              </span>

Is this a bug ?