$ git clone -n https://src.fedoraproject.org/rpms/libvidcap.git /var/lib/mock/f45-build-17215-497/root/chroot_tmpdir/scmroot/libvidcap
Cloning into '/var/lib/mock/f45-build-17215-497/root/chroot_tmpdir/scmroot/libvidcap'...
$ git fetch origin f8d7afb22eb5032208b5418af262a8657b6af1f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libvidcap
 * [new ref]         f8d7afb22eb5032208b5418af262a8657b6af1f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8d7afb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild