$ git clone -n https://src.fedoraproject.org/rpms/libdrm.git /var/lib/mock/f45-build-16076-481/root/chroot_tmpdir/scmroot/libdrm
Cloning into '/var/lib/mock/f45-build-16076-481/root/chroot_tmpdir/scmroot/libdrm'...
$ git fetch origin f372001636d10e5492ba826b7d8be0c5179f5fa0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdrm
 * [new ref]         f372001636d10e5492ba826b7d8be0c5179f5fa0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f372001 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild