$ git clone -n https://src.fedoraproject.org/rpms/fonts-tweak-tool.git /var/lib/mock/f39-build-1623423-38936/root/chroot_tmpdir/scmroot/fonts-tweak-tool
Cloning into '/var/lib/mock/f39-build-1623423-38936/root/chroot_tmpdir/scmroot/fonts-tweak-tool'...
$ git fetch origin 2c6b27e46f1995cf270ab99e485dfc4e1cc2a66e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fonts-tweak-tool
 * [new ref]         2c6b27e46f1995cf270ab99e485dfc4e1cc2a66e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c6b27e New upstream release.