ISO 123:2001 is not fetching

[opoudjis]

(Is invoked in metanorma-iso)

ISO 123:1985 fetches fine.

ISO 123 fetches, with:

<bibdata type="standard">
  <fetched>2022-08-15</fetched>
  <title type="title-intro" format="text/plain" language="en" script="Latn">Rubber latex</title>
  <title type="title-main" format="text/plain" language="en" script="Latn">Sampling</title>
  <title type="main" format="text/plain" language="en" script="Latn">Rubber latex - Sampling</title>
  <uri type="src">https://www.iso.org/standard/23281.html</uri>
  <uri type="obp">https://www.iso.org/obp/ui/#!iso:std:23281:en</uri>
  <uri type="rss">https://www.iso.org/contents/data/standard/02/32/23281.detail.rss</uri>
  <docidentifier type="ISO" primary="true">ISO 123</docidentifier>
  <docidentifier type="URN">urn:iso:std:iso:123:stage-90.93:ed-3</docidentifier>
  <docnumber>123</docnumber>
  <contributor>
    <role type="publisher"/>
    <organization>
      <name>International Organization for Standardization</name>
      <abbreviation>ISO</abbreviation>
      <uri>www.iso.org</uri>
    </organization>
  </contributor>

this indicates that the date element 2001 is not being populated for ISO 123 as <date type="published">, hence why ISO 123:2001 is not recognised; the copyright year, however, is being populated as 2001. ISO 123:1985, by contrast, populates both the published date and the copyright year.

[ronaldtse]

Also, the URN is being filled in as Edition 3, so it is referring to some instance. This reference is however an undated one, so the URN should not have an edition.