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fix(runtime-core): check the DEV_ROOT_FRAGMENT flag correctly in the dev environment #2750

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Feb 5, 2021
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fix(runtime-core): check the DEV_ROOT_FRAGMENT flag correctly in the dev environment #2750

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6 changes: 5 additions & 1 deletion packages/runtime-core/src/componentRenderUtils.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -119,7 +119,11 @@ export function renderComponentRoot(
// to have comments along side the root element which makes it a fragment
let root = result
let setRoot: ((root: VNode) => void) | undefined = undefined
if (__DEV__ && result.patchFlag & PatchFlags.DEV_ROOT_FRAGMENT) {
if (
__DEV__ &&
result.patchFlag > 0 &&
result.patchFlag & PatchFlags.DEV_ROOT_FRAGMENT
) {
;[root, setRoot] = getChildRoot(result)
}

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