$ git clone -n https://src.fedoraproject.org/rpms/libcacard.git /var/lib/mock/f42-build-883147-185134/root/chroot_tmpdir/scmroot/libcacard
Cloning into '/var/lib/mock/f42-build-883147-185134/root/chroot_tmpdir/scmroot/libcacard'...
$ git fetch origin e8449f4e6093b067c56c827ad7d44a117b11f072:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcacard
 * [new ref]         e8449f4e6093b067c56c827ad7d44a117b11f072 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8449f4 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild