$ git clone -n https://src.fedoraproject.org/rpms/pam.git /var/lib/mock/f40-build-2201640-51836/root/chroot_tmpdir/scmroot/pam
Cloning into '/var/lib/mock/f40-build-2201640-51836/root/chroot_tmpdir/scmroot/pam'...
$ git fetch origin 375d803c75ab145b393f2d685464254e865930a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam
 * [new ref]         375d803c75ab145b393f2d685464254e865930a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 375d803 pam.conf: Remove tallylog (#2253817)