message: fix(compiler-sfc): preserve old deindent behavior for pug
  fix
diff: @@ -10,6 +10,7 @@ export const DEFAULT_FILENAME = 'anonymous.vue'
  const splitRE = /\r?\n/g
  const replaceRE = /./g
  const isSpecialTag = makeMap('script,style,template', true)
  +const isNeedIndentLang = makeMap('pug,jade')
  export interface SFCCustomBlock {
  type: string
  @@ -177,7 +178,11 @@ export function parseComponent(
  if (depth === 1 && currentBlock) {
  currentBlock.end = start
  let text = source.slice(currentBlock.start, currentBlock.end)
  - if (options.deindent) {
  + if (
  + options.deindent ||
  + // certain langs like pug are indent sensitive, preserve old behavior
  + (currentBlock.lang && isNeedIndentLang(currentBlock.lang))
  + ) {
  text = deindent(text)
  }
  // pad content so that linters and pre-processors can output correct
  