Merge pull request #3828 from BurNiinTRee/restore-signals-before-edit

nix edit: call restoreSignals() before `execvp`-ing the $EDITOR

src/nix/edit.cc

@@ -45,6 +45,7 @@ struct CmdEdit : InstallableCommand
 
         auto args = editorFor(pos);
 
+        restoreSignals();
         execvp(args.front().c_str(), stringsToCharPtrs(args).data());
 
         std::string command;