$ git clone -n https://src.fedoraproject.org/rpms/adobe-source-code-pro-fonts.git /var/lib/mock/f39-build-1687850-41110/root/chroot_tmpdir/scmroot/adobe-source-code-pro-fonts
Cloning into '/var/lib/mock/f39-build-1687850-41110/root/chroot_tmpdir/scmroot/adobe-source-code-pro-fonts'...
$ git fetch origin e7a46941a8a2d658df13be1636a26a01a9567a49:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/adobe-source-code-pro-fonts
 * [new ref]         e7a46941a8a2d658df13be1636a26a01a9567a49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e7a4694 Fix fontconfig files and file names