In f26, gomtree 0.3.x segfaults. A rebuild fixes this. However, upstream has released 0.4 and therefore I will build that in koji. This is just for the record.
gomtree-0.4.0-1.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-1ea8cad421
gomtree-0.4.0-1.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-1ea8cad421
gomtree-0.4.0-1.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.