$ git clone -n https://src.fedoraproject.org/rpms/perl-MogileFS-Server.git /var/lib/mock/f42-build-3181714-40950/root/chroot_tmpdir/scmroot/perl-MogileFS-Server
Cloning into '/var/lib/mock/f42-build-3181714-40950/root/chroot_tmpdir/scmroot/perl-MogileFS-Server'...
$ git fetch origin e439bcedd57d8739672814089ca9f0f427f6a56c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MogileFS-Server
 * [new ref]         e439bcedd57d8739672814089ca9f0f427f6a56c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e439bce Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild