$ git clone -n https://src.fedoraproject.org/rpms/adobe-source-sans-pro-fonts.git /var/lib/mock/f40-build-2197281-51636/root/chroot_tmpdir/scmroot/adobe-source-sans-pro-fonts
Cloning into '/var/lib/mock/f40-build-2197281-51636/root/chroot_tmpdir/scmroot/adobe-source-sans-pro-fonts'...
$ git fetch origin c7ff1bf821519bf3cb31bbb626287a540774d377:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/adobe-source-sans-pro-fonts
 * [new ref]         c7ff1bf821519bf3cb31bbb626287a540774d377 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c7ff1bf Update to 3.052