ID of tspan tag is rewritten without permission

Each image composed of g, rect, and tspan is assigned an ID.
When I read this file, there is no problem with the g and rect tags, but only the ID of tspan is rewritten without permission.
The target part of the sample is as follows.

When the ID A001 is reopened, it will be automatically rewritten to an ID like tspan3667.
I have checked on both windows and macos.

<a href="https://www.google.com/" target="_blank">
    <g
        id="A1"
        transform="translate(0,-22.652543)">
        <rect
            style="stroke-width:0.264583"
            id="rect228"
            width="302.03387"
            height="210.16525"
            fill="#63ff8d"
            class="bar"
            x="70.474571"
            y="59.148308" />
        <text
            xml:space="preserve"
            style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:105.833px;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-east-asian:normal;fill:#000080;stroke-width:0.264583"
            x="91.86866"
            y="206.38983"
            id="textA1"><tspan
                id="spanA1"
                style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:105.833px;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-east-asian:normal;fill:#000080;stroke-width:0.264583"
                x="91.86866"
                y="206.38983">A001</tspan></text>
    </g>
</a>