$ git clone -n https://src.fedoraproject.org/rpms/kf5-libkexiv2.git /var/lib/mock/f40-build-2246813-53842/root/chroot_tmpdir/scmroot/kf5-libkexiv2
Cloning into '/var/lib/mock/f40-build-2246813-53842/root/chroot_tmpdir/scmroot/kf5-libkexiv2'...
$ git fetch origin 60c283faea5153ca27cb6d5839e9226a71f8f74f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-libkexiv2
 * [new ref]         60c283faea5153ca27cb6d5839e9226a71f8f74f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 60c283f Moved to libkexiv2, in the qt5 subpackage