$ git clone -n https://src.fedoraproject.org/rpms/libreport.git /var/lib/mock/f40-build-784373-133362/root/chroot_tmpdir/scmroot/libreport
Cloning into '/var/lib/mock/f40-build-784373-133362/root/chroot_tmpdir/scmroot/libreport'...
$ git fetch origin 0456c363514aa7440a74a065b10c8fa6c9739f04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libreport
 * [new ref]         0456c363514aa7440a74a065b10c8fa6c9739f04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0456c36 [packit] 2.17.14 upstream release