$ git clone -n https://src.fedoraproject.org/rpms/glibc.git /var/lib/mock/f41-build-823089-153466/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/f41-build-823089-153466/root/chroot_tmpdir/scmroot/glibc'...
$ git fetch origin 03bf7e6cdf637e35df9d8eb74de2d35531e504d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/glibc
 * [new ref]         03bf7e6cdf637e35df9d8eb74de2d35531e504d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 03bf7e6 Stub resolver configuration updates (RHEL-18039)