$ git clone -n https://src.fedoraproject.org/rpms/pam.git /var/lib/mock/f41-build-side-1-3128525-39567/root/chroot_tmpdir/scmroot/pam
Cloning into '/var/lib/mock/f41-build-side-1-3128525-39567/root/chroot_tmpdir/scmroot/pam'...
$ git fetch origin 26ff05200abb788a76f8a5a7d32d2bff558e8b0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam
 * [new ref]         26ff05200abb788a76f8a5a7d32d2bff558e8b0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 26ff052 pam_access: always match local address and clarify LOCAL keyword behaviour