[Localization] Duplicate messages found in src_sdk_translations_en.ts ("Cannot copy %1 to %2: %3")

[scootergrisen]

I'm trying to translate the Qt installer but then i open the ts file in 
Version 5.7.0 i get this dialog:
---

Duplicate messages found in '/[...]/src_sdk_translations_en.ts':
* Context: KDUpdater::MoveOperation
* Source: Cannot copy %1 to %2: %3

---

In the ts file we have:
---

<context>
     <name>KDUpdater::MoveOperation</name>
[...]
     <message>
         <source>Cannot copy %1 to %2: %3</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Cannot copy %1 to %2: %3</source>
         <translation type="unfinished"></translation>
     </message>
[...]
</context>

---

Maybe either the ts file should be corrected and the installer that use 
it or perhaps not show such a dialog in Linguist if it is there on purpose.