$ git clone -n https://src.fedoraproject.org/rpms/webkit2gtk4.0.git /var/lib/mock/f41-build-808045-145625/root/chroot_tmpdir/scmroot/webkit2gtk4.0
Cloning into '/var/lib/mock/f41-build-808045-145625/root/chroot_tmpdir/scmroot/webkit2gtk4.0'...
$ git fetch origin 1b6436ca922408506d2e9f05fa9066bb006a9a7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/webkit2gtk4.0
 * [new ref]         1b6436ca922408506d2e9f05fa9066bb006a9a7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b6436c Update to 2.44.1