Issue with several consecutive ios build in release

[dtopuzov]

Steps to reproduce:

tns create TestApp --template https://github.com/NativeScript/template-hello-world
<update modules, webpack and runtimes with next>
tns build ios --provision NativeScriptDevProfile --path TestApp --for-device  --release  --bundle
tns build ios --path TestApp --bundle  --release  --provision NativeScriptDevProfile --for-device  --env.uglify

Result:

WARNING in bundle.js from UglifyJs
Condition always true [bundle.js:168,4]

WARNING in vendor.js from UglifyJs
Side effects in initialization of unused variable chunk [vendor.js:67,16]
Side effects in initialization of unused variable anyGlobal [vendor.js:726,4]
Condition left of || always true [vendor.js:5095,13]
Side effects in initialization of unused variable InlineSelector [vendor.js:6427,4]
Dropping unreachable code [vendor.js:8360,4]
Declarations in unreachable code! [vendor.js:8360,4]
Side effects in initialization of unused variable result [vendor.js:9252,12]
Dropping unused variable nonQuoteURLRegEx [vendor.js:9166,4]
Side effects in initialization of unused variable AnimationInfo [vendor.js:9718,4]
Condition always true [vendor.js:12010,4]
Side effects in initialization of unused variable __tnsGlobalMergedModules [vendor.js:12156,4]
Side effects in initialization of unused variable name [vendor.js:22770,20]
Dropping unused function isLiteralExpression [vendor.js:23166,13]
Dropping unused function consumeSemicolon [vendor.js:23816,13]
Dropping unused function toNumber [vendor.js:24357,9]
Dropping unused function areSameValue [vendor.js:24369,9]
Side effects in initialization of unused variable numberIsNaN [vendor.js:24365,4]
Condition always true [vendor.js:28224,4]
Dropping unused variable u [vendor.js:28284,8]
Dropping unreachable code [vendor.js:28605,20]
Dropping unused variable u [vendor.js:28415,8]
Dropping unused variable u [vendor.js:28619,8]
Condition always true [vendor.js:32207,33]
Condition always true [vendor.js:32211,33]
Dropping unreachable code [vendor.js:32348,8]
Declarations in unreachable code! [vendor.js:32348,8]
Dropping unreachable code [vendor.js:33681,4]
Declarations in unreachable code! [vendor.js:33681,4]
Dropping side-effect-free statement [vendor.js:34770,0]

ipa size after first command: 12886119
ipa size after second command: 15292717

[dtopuzov]

The same happens with two consecutive runs of this command:

tns build ios --provision NativeScriptDevProfile --path TestApp --for-device  --release  --bundle

[dtopuzov]

Same for android, running same command two times produce larger apks:

node_modules/.bin/tns build android --path TestApp --bundle  --release  <all the signing options> --env.uglify

Apk after first run: 11285024
Apk after second run: 13896215

[sis0k0]

caused by NativeScript/nativescript-cli#3280