$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-curlinterface.git /var/lib/mock/f41-build-854187-166804/root/chroot_tmpdir/scmroot/gap-pkg-curlinterface
Cloning into '/var/lib/mock/f41-build-854187-166804/root/chroot_tmpdir/scmroot/gap-pkg-curlinterface'...
$ git fetch origin 48d8b7ebd66849b866febb188cbfd12bab4062f4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-curlinterface
 * [new ref]         48d8b7ebd66849b866febb188cbfd12bab4062f4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 48d8b7e Version 2.4.0