Charles Lyding 495459a8a3 fix(@angular-devkit/schematics): merge external schematics after execution
When an `externalSchematic` rule was used, the input tree was branched but never merged back into the input tree.  This resulted in a different tree instance being returned from the rule.  The `externalSchematic` rule now behaves like the `schematic` rule which merges the trees.
2021-02-01 10:30:15 +01:00
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