$ git clone -n https://src.fedoraproject.org/rpms/swift-lang.git /var/lib/mock/f33-build-345912-59360/root/chroot_tmpdir/scmroot/swift-lang
Cloning into '/var/lib/mock/f33-build-345912-59360/root/chroot_tmpdir/scmroot/swift-lang'...
$ git reset --hard 5b6b41a5d4b162f3da8d93609cc4dba6c5e4768d
HEAD is now at 5b6b41a Updated to Swift 5.3-RELEASE