Merge Editor - sub-optimal indentation when accept combination

``` { "languageId": "yaml", "base": "\n - template: templates/stages/publish.yml\n parameters:\n customNPMRegistry: ${{ parameters.customNPMRegistry }}\n environment: Marketplace (no-approval)\n ghCreateRelease: ${{ parameters.ghCreateRelease }}\n ghReleaseAddChangeLog: ${{ parameters.ghReleaseAddChangeLog }}\n isPreRelease: ${{ parameters.usePreReleaseChannel }}\n nodeVersion: ${{ parameters.nodeVersion }}\n", "input1": "\n - ${{ if eq(variables.publishExtension, 'true') }}:\n - template: templates/stages/publish.yml\n parameters:\n customNPMRegistry: ${{ parameters.customNPMRegistry }}\n environment: Marketplace (no-approval)\n ghCreateRelease: ${{ parameters.ghCreateRelease }}\n ghReleaseAddChangeLog: ${{ parameters.ghReleaseAddChangeLog }}\n isPreRelease: ${{ parameters.usePreReleaseChannel }}\n nodeVersion: ${{ parameters.nodeVersion }}\n", "input2": "\n - template: templates/stages/publish.yml\n parameters:\n customNPMRegistry: ${{ parameters.customNPMRegistry }}\n environment: Marketplace (no-approval)\n ghCreateRelease: ${{ parameters.ghCreateRelease }}\n ghCreateTag: ${{ variables.ghCreateTag }}\n ghReleaseAddChangeLog: ${{ parameters.ghReleaseAddChangeLog }}\n ghTagPrefix: ${{ parameters.ghTagPrefix }}\n isPreRelease: ${{ parameters.usePreReleaseChannel }}\n nodeVersion: ${{ parameters.nodeVersion }}\n", "result": "\n - ${{ if eq(variables.publishExtension, 'true') }}:\n - template: templates/stages/publish.yml\n parameters:\n customNPMRegistry: ${{ parameters.customNPMRegistry }}\n environment: Marketplace (no-approval)\n ghCreateRelease: ${{ parameters.ghCreateRelease }}\n ghCreateTag: ${{ variables.ghCreateTag }}\n ghReleaseAddChangeLog: ${{ parameters.ghReleaseAddChangeLog }}\n ghTagPrefix: ${{ parameters.ghTagPrefix }}\n isPreRelease: ${{ parameters.us…