$ git clone -n https://src.fedoraproject.org/rpms/rust-pcre2-sys.git /var/lib/mock/f45-build-43696-805/root/chroot_tmpdir/scmroot/rust-pcre2-sys
Cloning into '/var/lib/mock/f45-build-43696-805/root/chroot_tmpdir/scmroot/rust-pcre2-sys'...
$ git fetch origin 7f1633d4d91954390f255e5c5b7d97ad09a2efb0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pcre2-sys
 * [new ref]         7f1633d4d91954390f255e5c5b7d97ad09a2efb0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7f1633d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild