$ git clone -n https://src.fedoraproject.org/rpms/qtxdg-tools.git /var/lib/mock/f39-build-1564933-37534/root/chroot_tmpdir/scmroot/qtxdg-tools
Cloning into '/var/lib/mock/f39-build-1564933-37534/root/chroot_tmpdir/scmroot/qtxdg-tools'...
$ git fetch origin 8f94ee749fd3f50b9fed693724aea94f5708820d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qtxdg-tools
 * [new ref]         8f94ee749fd3f50b9fed693724aea94f5708820d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f94ee7 Update version to 3.11.0