static L<SnippetVersion> versionsOfSnippetWithText(S snippetID) {
  ret versionsOfSnippetWithText(getVersionsOfSnippet(SnippetID));

}

static L<SnippetVersion> versionsOfSnippetWithText(L<SnippetVersion> l) {
  for (SnippetVersion v : l)
    if (v.versionID != 0)
      v.previousValue = loadPage("http://tinybrain.de:8080/tb/get-version.php?id=" + psI(v.snippetID) + "&v_id=" + v.versionID);
  ret l;
}