$ git clone -n https://github.com/xcp-ng-rpms/qlogic-netxtreme2-alt.git /var/lib/mock/v8.3-incoming-9541-28285/root/chroot_tmpdir/scmroot/qlogic-netxtreme2-alt
Cloning into '/var/lib/mock/v8.3-incoming-9541-28285/root/chroot_tmpdir/scmroot/qlogic-netxtreme2-alt'...
$ git fetch origin 6a2b48cd7587e5ec8a9666ad3fc10a6a07645f49:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/qlogic-netxtreme2-alt
 * [new ref]         6a2b48cd7587e5ec8a9666ad3fc10a6a07645f49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a2b48c Merge pull request #6 from xcp-ng-rpms/8.3-update-sources-to-v7.15.24