fastlane: capture_screenshots with testplan does not switch simulator languages

New Issue Checklist

• Updated fastlane to the latest version
• I read the Contribution Guidelines
• I read docs.fastlane.tools
• I searched for existing GitHub issues

Issue Description

Scanfile has testplan set with testplan("testplanname") Fastfile calls

derived_data_path = "./DerivedData/"
output_directory = "./screenshots"
devices = [
  "iPhone 12 Pro Max"
]
languages = [
  "de-DE",
  "en-US",
  "fr-FR"
]

run_tests(
  build_for_testing: true,
  code_coverage: false,
  derived_data_path: derived_data_path,
  devices: devices
)

capture_screenshots(
  reinstall_app: true,
  clear_previous_screenshots: true,
  languages: languages,
  devices: devices,
  derived_data_path: derived_data_path,
  test_without_building: true,
  output_directory: output_directory
)

Executing this lane triggers the tests but does not change language or region when a testplan is set. Can’t use scheme when testplan is set either and can’t unset testplan in this lane to use scheme.

Command executed

executed custom lane fastlane create_pr_screenshots

🚫 fastlane environment 🚫

Stack

Key	Value
OS	11.1
Ruby	2.4.6
Bundler?	false
Git	git version 2.24.3 (Apple Git-128)
Installation Source	~/.rvm/gems/ruby-2.4.6/bin/fastlane
Host	macOS 11.1 (20C69)
Ruby Lib Dir	~/.rvm/rubies/ruby-2.4.6/lib
OpenSSL Version	OpenSSL 1.1.1d 10 Sep 2019
Is contained	false
Is homebrew	false
Is installed via Fabric.app	false
Xcode Path	/Applications/Xcode-12.3.0.app/Contents/Developer/
Xcode Version	12.3

System Locale

Error
No Locale with UTF8 found 🚫

fastlane files:

No Fastfile found

No Appfile found

fastlane gems

Gem	Version	Update-Status
fastlane	2.169.0	🚫 Update available

Loaded fastlane plugins:

No plugins Loaded

Loaded gems

Gem	Version
did_you_mean	1.1.0
executable-hooks	1.6.0
bundler-unload	1.0.2
rubygems-bundler	1.4.5
bundler	2.1.4
slack-notifier	2.3.2
rouge	2.0.7
xcpretty	0.3.0
terminal-notifier	2.0.0
unicode-display_width	1.7.0
terminal-table	1.8.0
plist	3.5.0
CFPropertyList	3.0.2
addressable	2.7.0
multipart-post	2.0.0
word_wrap	1.0.0
tty-cursor	0.7.1
tty-spinner	0.9.3
colored	1.2
highline	1.7.10
commander-fastlane	4.4.6
faraday_middleware	1.0.0
gh_inspector	1.1.3
rubyzip	2.3.0
security	0.1.3
xcpretty-travis-formatter	1.0.0
naturally	2.2.0
simctl	1.6.8
uber	0.1.0
declarative-option	0.1.0
representable	3.0.4
retriable	3.1.2
mini_mime	1.0.2
signet	0.14.0
httpclient	2.8.3
google-api-client	0.38.0
nanaimo	0.3.0
colored2	3.1.2
claide	1.0.3
atomos	0.1.3
xcodeproj	1.19.0
public_suffix	4.0.6
tty-screen	0.8.1
babosa	1.0.4
excon	0.78.0
unf_ext	0.0.7.7
unf	0.1.4
domain_name	0.5.20190701
http-cookie	1.0.3
ruby2_keywords	0.0.2
faraday	1.1.0
faraday-cookie_jar	0.0.7
fastimage	2.2.0
json	2.3.1
mini_magick	4.11.0
dotenv	2.7.6
jwt	2.2.2
declarative	0.0.20
multi_json	1.15.0
os	1.1.1
memoist	0.16.2
googleauth	0.14.0
rake	13.0.1
digest-crc	0.6.1
google-cloud-errors	1.0.1
google-cloud-env	1.4.0
google-cloud-core	1.5.0
google-cloud-storage	1.29.1
emoji_regex	3.2.1
aws-eventstream	1.1.0
aws-sigv4	1.2.2
aws-partitions	1.402.0
jmespath	1.4.0
aws-sdk-core	3.109.3
aws-sdk-kms	1.39.0
aws-sdk-s3	1.86.0
openssl	2.0.9
io-console	0.4.6
mini_portile2	2.4.0
nokogiri	1.10.10
psych	2.2.2

generated on: 2020-12-18