$ git clone -n https://src.fedoraproject.org/rpms/egl-x11.git /var/lib/mock/f42-build-side-1-3540420-46574/root/chroot_tmpdir/scmroot/egl-x11
Cloning into '/var/lib/mock/f42-build-side-1-3540420-46574/root/chroot_tmpdir/scmroot/egl-x11'...
$ git fetch origin 1b9447c77b2d9ab28cdbcb7632600610f6295180:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/egl-x11
 * [new ref]         1b9447c77b2d9ab28cdbcb7632600610f6295180 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b9447c Update to 1.0.2