Swiftz-Swift.h is not produced in Headers folder of Framework

[tmspzz]

Version

Tag 0.6.3

Reproducible also on

commit 556236ad2d7c7420eea4301cf69b09575905a508 (HEAD -> master, origin/master, origin/HEAD)
Merge: 5afb898 4915ce0
Author: Robert Widmann <[email protected]>
Date:   Sun Apr 22 09:15:25 2018 -0400

Environment

macOS High Sierra, 10.13.4 (17E202)

Description

Swiftz-Swfit.h header file is not produced when the framework is archived

Steps To Reproduce

carthage build --archive

Expected Result

Swiftz-Swfit.h header file is produced when the framework is archived

Actual Result

Swiftz-Swfit.h header file is not produced when the framework is archived

Additional information

The file is relatively important since carthage uses it to determine whether a binary artifact is still valid in the build Carthage/Build folder when using --cache-builds

See Carthage/Carthage#2619