$ git clone -n https://src.fedoraproject.org/rpms/golang-github-daviddengcn-colortext.git /var/lib/mock/f41-build-1143921-21146/root/chroot_tmpdir/scmroot/golang-github-daviddengcn-colortext
Cloning into '/var/lib/mock/f41-build-1143921-21146/root/chroot_tmpdir/scmroot/golang-github-daviddengcn-colortext'...
$ git fetch origin 6fe6c445321af1126b49a6804adb0c245c0aabe6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-daviddengcn-colortext
 * [new ref]         6fe6c445321af1126b49a6804adb0c245c0aabe6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6fe6c44 Fix FTBFS