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Fix label ids for expressions with forward refs. (mathjax/MathJax#3562) #1507

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Fix label ids for expressions with forward refs. (mathjax/MathJax#3562) #1507

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12 changes: 6 additions & 6 deletions ts/input/tex/base/BaseMethods.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2177,13 +2177,13 @@ const BaseMethods: { [key: string]: ParseMethod } = {
// @test Label Empty
return;
}
// @test Label, Ref, Ref Unknown
if (parser.tags.label) {
// @test Double Label Error
throw new TexError('MultipleCommand', 'Multiple %1', parser.currentCS);
}
parser.tags.label = label;
if (!parser.tags.refUpdate) {
// @test Label, Ref, Ref Unknown
if (parser.tags.label) {
// @test Double Label Error
throw new TexError('MultipleCommand', 'Multiple %1', parser.currentCS);
}
parser.tags.label = label;
if (
(parser.tags.allLabels[label] || parser.tags.labels[label]) &&
!parser.options['ignoreDuplicateLabels']
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