<p></p>
<p>We have the same issue with multi-valued keys like <code>website</code>, <code>wikimedia_commons</code>… if URL are (two) long.<br>
Or with <code>subject:wikidata</code> i.e. for a memorial with a lot a persons.</p>
<blockquote>
<p>there's no technical reason for having a limit, but it serves as a reminder for people that tags are supposed to be human-readable</p>
</blockquote>
<p>Editors could <strong>warn</strong> users but let them the choice to go beyond 255  <g-emoji class="g-emoji" alias="smiley" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f603.png">😃</g-emoji></p>

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