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    <p>C++ API documentation for <tt>SingleCRS.coordinateSystem()</tt>
      [1] contains <i>"This might be null, in which case
        datumEnsemble() return will not be null"</i>. I think this is an
      accidental copy-and-paste from the <tt>SingleCRS.datum()</tt>
      documentation and that this sentence (together with <i>"that
        might be null"</i> in the return description) should be removed
      in the <tt>coordinateSystem()</tt> case.<br>
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    <pre>[1] <a class="moz-txt-link-freetext" href="https://proj.org/development/reference/cpp/crs.html#_CPPv4N5osgeo4proj3crs9SingleCRS16coordinateSystemEv">https://proj.org/development/reference/cpp/crs.html#_CPPv4N5osgeo4proj3crs9SingleCRS16coordinateSystemEv</a>
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    <p>    Martin</p>
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